Grandstream Networks GXP2120 IP PHONE User Manual GXP21xx Usermanual 1 0 1 83

Grandstream Networks, Inc. IP PHONE GXP21xx Usermanual 1 0 1 83

Users Manual

Grandstream Networks, Inc.  GXP21xx User Manual  Page 1 of 1                                                                      Firmware version: 1.0.1.83                                 Last Updated:  08/2011                      Grandstream Networks, Inc.   GXP21xx SIP Enterprise Phones
Grandstream Networks, Inc.  GXP21xx User Manual  Page 1 of 44                                                                    Firmware version: 1.0.1.83                                  Last Updated:  08/2011 TABLE OF CONTENTS GXP21XX USER MANUAL  WELCOME .................................................................................................................................................................3INSTALLATION.........................................................................................................................................................4EQUIPMENT PACKAGING .............................................................................................................................................4CONNECTING YOUR PHONE ........................................................................................................................................4GXP2120/2110 EXTENSION UNIT...............................................................................................................................4SAFETY COMPLIANCES................................................................................................................................................6WARRANTY.................................................................................................................................................................6PRODUCT OVERVIEW............................................................................................................................................7USING THE GXP21XX SIP ENTERPRISE PHONE ...........................................................................................11GETTING FAMILIAR WITH THE LCD..........................................................................................................................11MAKING PHONE CALLS.............................................................................................................................................14ANSWERING PHONE CALLS.......................................................................................................................................17PHONE FUNCTIONS DURING A PHONE CALL .............................................................................................................18CALL FEATURES........................................................................................................................................................20CUSTOMIZED LCD SCREEN & XML.........................................................................................................................21CONFIGURATION GUIDE......................................................................................................................................22CONFIGURATION VIA KEYPAD..................................................................................................................................22CONFIGURATION VIA WEB BROWSER ......................................................................................................................25SAVING THE CONFIGURATION CHANGES...................................................................................................................40REBOOTING THE PHONE REMOTELY .........................................................................................................................40SOFTWARE UPGRADE & CUSTOMIZATION..................................................................................................41FIRMWARE UPGRADE THROUGH TFTP/HTTP..........................................................................................................41CONFIGURATION FILE DOWNLOAD ...........................................................................................................................42RESTORE FACTORY DEFAULT SETTING.......................................................................................................43      TABLE OF FIGURES GXP21XX USER MANUAL  Figure 1:  Connecting the GXP2120/2110 and the GXP Extension Board...................................... 5Figure 2:  Keypad GUI Flow........................................................................................................... 23   TABLE OF TABLES GXP21XX USER MANUAL  Table 1:  Equipment Packaging ....................................................................................................... 4 Table 2:  GXP21xx Connectors ....................................................................................................... 4 Table 3:  GXP21xx Product Models................................................................................................. 7 Table 4:  GXP21xx Comparison Guide............................................................................................ 7Table 5:  GXP21xx Key Features in a Glance ................................................................................. 8
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 2 of 44                                                                          Firmware version: 1.0.1.83                                   Last Updated:  08/2011  Table 6:  GXP21xx Hardware Specifications ................................................................................... 8Table 7:  GXP21xx Technical Specifications ................................................................................... 9Table 8:  LCD Display Definition .................................................................................................... 11Table 9:  LCD Icons ....................................................................................................................... 12Table 10:  GXP21xx Keypad Buttons ............................................................................................ 13Table 11:  GXP21xx Call Features ................................................................................................20Table 12:  Key Pad Configuration Menu ........................................................................................ 22Table 13:  Device Configuration - Status .......................................................................................26Table 14:  Device Configuration – Settings/Basic Settings............................................................ 26Table 15:  Device Configuration – Settings /Advanced Settings ................................................... 29Table 16:  SIP Account Settings .................................................................................................... 34   GUI INTERFACE EXAMPLES GXP21XX USER MANUAL  http://www.grandstream.com/products/gxp_series/general/documents/gxp21xx_gui.zip  1.  Screenshot of Configuration Login Page 2.  Screenshot of Status Page 3.  Screenshot of Basic Setting Configuration Page 4.  Screenshot of Advanced User Configuration Page 5.  Screenshot of SIP Account Configuration Page 6.  Screenshot of Saved Configuration Changes Page 7.  Screenshot of Reboot Page
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 3 of 44                                                                          Firmware version: 1.0.1.83                                   Last Updated:  08/2011  Welcome Your Grandstream GXP21xx Enterprise IP phone is feature-enriched, sophisticated, yet simple to use. The GXP21xx delivers superior HD audio quality, rich and leading edge telephony features, personalized information and customizable application service, automated provisioning for easy deployment, advanced security protection for privacy, and broad interoperability with most 3rd party SIP devices and leading SIP/NGN/IMS platforms.  The GXP21xx supports a broad range of codecs, security protection, PoE, dual 10/100mbps Ethernet ports, along with customizable XML provisioning and application features. Users can expect superior audio quality using the new high definition handset, hands-free speakerphone, or headset. Also, it can support up to 5-way conferencing, multi-languages, dual-color LEDs, presence and Busy Lamp Field (BLF). It presents a large easy-to-read backlit graphical display along with multiple XML keys to further enhance the user experience. The GXP2120/2110 is also expandable with one to two expansion modules.  The GXP21xx is a perfect choice for enterprise users looking for a high quality, feature rich multi-line IP phone with the best values.               Caution: Changes or modifications to this product not expressly approved by Grandstream, or operation of this product in any way other than as detailed by this User Manual, could void your manufacturer warranty.  Warning: Please do not use a different power adaptor with the GXP21xx as it may cause damage to the products and void the manufacturer warranty.    •  This document is subject to change without notice. The latest electronic version of this user manual is available for download from: http://www.grandstream.com/support   • Reproduction or transmittal of the entire or any part, in any form or by any means, electronic or print, for any purpose without the express written permission of Grandstream Networks, Inc. is not permitted.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 4 of 44                                                                          Firmware version: 1.0.1.83                                   Last Updated:  08/2011  Installation EQUIPMENT PACKAGING  Table 1:  Equipment Packaging GXP2120 GXP2110  GXP2100 Main Case  Yes Yes  Yes Handset  Yes Yes  Yes Phone Cord  Yes Yes  Yes Power Adaptor  Yes Yes  Yes Ethernet Cable  Yes Yes  Yes High Phone Stand  Yes Yes  Yes Low Phone Stand  Yes Yes  No Wall Mount Spacers (2) Yes  Yes  Wall Mount stand  CONNECTING YOUR PHONE  The connectors of the GXP21xx are located on the bottom of the device.   Table 2:  GXP21xx Connectors    EXT  Connect the GXP Extension unit directly to GXP2110/2120 using connection cable. Draw power from PoE if provided by network (Not applicable on GXP2100). PC  10/100Mbps RJ-45 ports for PC (downlink) connection. LAN  10/100Mbps RJ-45 port for LAN (uplink) connection. Supports PoE (802.3af). Draws power from either spare line or signal line. Power Jack  5V DC power port; UL Certified Headset Jack  RJ9 and 2.5mm Handset Jack  RJ9  GXP2120/2110 EXTENSION UNIT   GXP2120/2110 supports two (2) extension units, providing up to 112 additional programmable extensions. Each GXP Extension unit has 56 multi-purpose keys, dual color LEDs (red/green) and support BLF (Busy Lamp Field) and Presence.  GXP2120/2110 Extension package contains:  1)  1 GXP Extension unit 2) 2 connection cables
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 5 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Figure 1:  Connecting the GXP2120/2110 and the GXP Extension  GXP2120 with GXP Extension  GXP Extension   Connecting the GXP2120/2110  to GXP Extension  Reverse side of connection with connection plate   Reverse side of connection w/connection plate        GXP2120/2110 has a special port on the back.        Connect the first GXP EXT to the GXP2120/2110 using the connection cable found in the GXP Extension package. The first GXP EXT draws power directly from the phone. Connect the second GXP Extension unit using the connection plate and the connection cable. The GXP2120/2110 will automatically reboot and power up the GXP Extensions. Grandstream recommends, though not required, to use a separate power supply with the second GXP EXT.     NOTE:   •  Should your system lose power, please unplug your devices and power up the GXP2120/2110 first. •  Powering up the system:   1.  The GXP2120/2110 will boot up first;   2.  The GXP2120/2110 LEDs will be solid red; 3.  The status light in the top right corner of the GXP Ext will blink in red; 4.  All of the LED indicators on the GXP Ext will flash three times; 5.  The status light at the top right corner of the GXP Ext will turn to solid green.   NOTE:  •  Extension for GXP2120/2110 is the same for GXP2020/2010 models. However, GXP2120/2110 uses a different-shaped connector for the special port (as shown above). Extension cables will be included with the extension board. •  Extension for GXP2120/2110 does not support hot-swap. Once connected, user should reboot the phone to ensure the set up will work correctly.  •  GXP2120/2110 can drive 2 extension modules. Independent power adapters are not needed for extension modules.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 6 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  SAFETY COMPLIANCES  The GXP21xx complies with FCC/CE and various safety standards. The GXP21xx power adaptor is compliant with the UL standard. Only use the universal power adaptor provided with the GXP21xx package. The manufacturer’s warranty does not cover damages to the phone caused by unsupported power adaptors.   WARRANTY  If you purchased your GXP21xx from a reseller, please contact the company where you purchased your phone for replacement, repair or refund. If you purchased the product directly from Grandstream, contact your Grandstream Sales and Service Representative for a RMA (Return Materials Authorization) number before you return the product. Grandstream reserves the right to remedy warranty policy without prior notification.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 7 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Product Overview  Table 3: GXP21xx Product Models   Model Picture  Overview  GXP2120   GXP2120 is an executive SIP phone. It features:  y Six lines y  Seven programmable hard keys  y  Four XML programmable soft keys  GXP2110   GXP2110 is an executive SIP phone. It features:  y Four lines y  Eighteen programmable hard keys  y  Three XML programmable soft keys GXP2100   GXP2100 is an executive SIP phone. It features:  y Four lines y  Seven programmable hard keys  y  Three XML programmable soft keys   Table 4: GXP21xx Comparison Guide  Features GXP2120 GXP2110 GXP2100 LCD Display  320x160 pixel 240x120 pixel  180x90 pixel  Number of Lines  6 4 4 Programmable Hard Keys 7 18 7 Programmable Soft Keys  4 3 3 Extension Module   Yes, up to 2 Expansion Modules, 56 nodes each Yes, up to 2 Expansion Modules, 56 nodes each N/A
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 8 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Table 5:  GXP21xx Key Features in a Glance  Features Benefits Open Standards Compatible  SIP RFC3261, TCP/IP/UDP, RTP, HTTP/HTTPS, ARP/RARP, ICMP, DNS (A record, SRV and NAPTR), DHCP (both client and server), PPPoE, TELNET, TFTP, NTP, STUN, SIMPLE, SIP over TLS, 802.1x, TR-069 Superb Audio Quality  Advanced Digital Signal Processing (DSP), Silence Suppression, VAD, CNG, AGC Network Interfaces  Dual 10/100mbps Ethernet ports with integrated PoE Feature Rich  Traditional voice features including caller ID, call waiting, hold, transfer, forward, block, auto-dial, off-hook dial Advanced Features  Multi-line support with dual-color LED, multi-party conferencing, line extension interface, large backlit graphic LCD, 4 navigation keys, dedicated buttons for hold, send/redial, speakerphone, headset, transfer, conference (for up to 5 parties depending on model), mute, message, Do-Not-Disturb, phone book, intercom Advanced Functionality  Customized downloadable ring-tones, SRTP, SIP over TLS, multi-language support and XML enabled, adjustable positioning angles, wall mountable, AES encryption, automatic multimedia service (eg., weather, stock and currency information)   Table 6:  GXP21xx Hardware Specifications  Model GXP2120  GXP2110 GXP2100 LAN Interface (Ethernet ports)  Two (2) 10/100 Mbps Full/Half Duplex Ethernet Switch with LAN and PC port with auto detection Graphic LCD Display  320x160 pixel  240x120 pixel  180x90 pixel Expansion Module Support  Yes No Headset Jack  2.5mm and RJ9 Call Appearance LED  13 Dual color (green/red)  22 Dual color (green/red)  11 Dual color (green/red) Power over Ethernet  Built-in auto-sensing: Cisco and IEEE 802.3af standard Universal Switching  Input: 100-240VAC 50-60 Hz Input: 100-240VAC 50-60 Hz Input: 100-240VAC 50-60 Hz Power Adaptor  Output: +5VDC, 800mA, UL certified  Output: +5VDC, 800mA, UL certified Output: +5VDC, 800mA, UL certified Dimension  251mm(W) x 202mm(L) x 77mm(H) 252mm (W) x 210mm (L) x 78mm (H) 222mm (W) x 210mm (L) x 93mm (H) Weight  1.66KG (3.64lbs)  1.78KG (3.92lbs)  1.63KG (3.59lbs) Temperature  32 –104° F/ 0 – 40°C
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 9 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Humidity  10% – 90% (non-condensing) Compliance  FCC / CE / C-Tick   Table 7:  GXP21xx Technical Specifications  Lines   Multiple direct lines with independent SIP accounts, programmable speed dial keys, XML programmable soft-keys Protocol Support  Support SIP 2.0, TCP/UDP/IP, PPPoE, RTP, SRTP by SDES, HTTP, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, SIMPLE/PRESENCE protocols, TR-069, 802.1x Support multiple SIP accounts and up to 11 media channels concurrently  Support SIP PUBLISH method (RFC 3903), SIP Presence package (RFC 3856, 3863) for use of MFKs, SIP Dialog package (RFC 4235)  Support for SIP MESSAGE method (RFC 3428) Display   Backlit graphic LCD display, up to 8 level grayscale Feature Keys                  Feature keys on different models:  GXP2120 GXP2110 GXP2100 HOLD  Yes Yes Yes SPEAKERPHONE Yes Yes Yes SEND  Yes Yes Yes TRANSFER Yes Yes Yes CONF  Yes Yes Yes MUTE  Yes Yes Yes DND  Yes Yes No HEADSET  Yes Yes Yes INTERCOM Yes Yes Yes PHONEBOOK Yes Yes Yes MSG  Yes Yes Yes MENU   Yes Yes Yes NAVIGATION (4) Yes Yes Yes  Device Management  NAT-friendly remote software upgrade (via TFTP/HTTP) for deployed devices including behind firewall/NAT Auto/manual provisioning system, Web GUI Interface   Expansion interface, Address Book Audio Features   Full-duplex hands-free speakerphone, headset enabled  Advanced Digital Signal Processing (DSP)  Dynamic negotiation of codec and voice payload length  Support for G.723,1 (5.3/6.3K), G.729A/B, G.711 a/µ-law, G.726-32, G.722 (wide-band), and iLBC codecs  In-band and out-of-band DTMF (in audio, RFC2833, SIP INFO)  Silence Suppression, VAD (voice activity detection), CNG (comfort noise generation), ANG (automatic gain control)  Acoustic Echo Cancellation (AEC) with Acoustic Gain Control (AGC) for speakerphone mode, Support side tone  Adaptive jitter buffer control (patent-pending) and packet delay & loss
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 10 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  concealment HD audio handset with HD wideband audio codecs for excellent double-talk performance Telephony Features  Intuitive graphic user interface (GUI), downloadable phone book (XML, LDAP), support for anonymous call using privacy header, MLS (multi-language support)  Voice mail indicator, downloadable custom ring-tones, call hold, call transfer (attended/blind), call forward, call waiting, caller ID, mute, redial, call log, caller ID display or block, Do-Not-Disturb (DND) and volume control  Multi-party conferencing (up to 5), dial plan prefix, dial-plan support, off-hook auto dial, auto answer, early dial and speed dial Network and Provisioning  Via keypad/LCD, Web browser, or secure (AES encrypted) central configuration file, manual or dynamic host configuration protocol (DHCP) network setup Support NAT traversal using IETF STUN and Symmetric RTP Support Layer 2 (802.1Q, VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS) Firmware Upgrades  Support firmware upgrade via TFTP or HTTP Support for Authenticating configuration file before accepting changes User specific URL for configuration file and firmware files Mass provisioning using TR-069 or encrypted XML configuration file Advanced Server Features   Message waiting indication, support DNS SRV Look up and SIP Server Fail Over, Support customizable idle screen via downloading XML by HTTP/TFTP Security   User and administrator level passwords, MD5 and MD5-sess based authentication, AES based secure configuration file, SRTP, TLS, 802.1x media access control
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 11 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Using the GXP21xx SIP Enterprise Phone GETTING FAMILIAR WITH THE LCD  GXP21xx has a dynamic and customizable screen. The screen displays differently depending on whether the phone is idle or in use (active screen).   Table 8:  LCD Display Definition Item  Definitions DATE AND TIME  Displays the current date and time. Can be synchronized with Internet time servers. LOGO  Displays company logo name. This logo name can be customized via xml screen customization. NETWORK STATUS  Displays the status of the phone and network. It will indicate whether the network is down, starting or running (IP address). “## MISSED CALLS” is shown here too. STATUS ICON  Shows the status of the phone, using icons as shown in the next table.  LINE STATUS INDICATOR  Displays the name of the account that is in use. Select another account by pressing the LINE key on the left side. SOFTKEYS The softkeys are context sensitive and will change depending on the status of the phone. Typical functions assigned to softkeys are: • FORWARD ALL   Unconditionally forward the phone line to another phone. • MISSED CALL      This option shows up unanswered calls to this phone. • SWITCHSCR        Press this button to toggle between different idle screens. • REDIAL        Redial the last dialed number. • END CALL        Hang up phone. • REFRESHSTOCK    Refresh the stock information when stock is enabled. • REVERSECUR         Display the currency information in reverse order. • REFRESHCUR         Refresh the currency information when currency is enabled.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 12 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  SPECIAL SOFTKEYS (Only When Integrated with GXE5024/5028) Call Parking:    FOR GXP2120/2110 ONLY. Please refer to GXE5024/5028 Online User Manual for more information.  • CallPark    When a GXP2120/2110 dials out, the Call Park softkey will display on screen. To park the call, press the “Call Park” button.  • PickUp      When another GXP2120/2110 goes off-hook, the Call Pickup softkey will display on screen. To pick up the parked call, press the “Call Pickup” button.   Call Queue:    FOR GXP2120/2110 ONLY. Please refer to GXE5024/5028 Online User Manual for more information.  • SignIn    Press this button to sign in to the call queue. Agent will be prompted in the LCD display to select the call queue to join. Press “menu” button on keypad to select “ok”. Once the agent completely signs in, the agent will be brought back to the main screen. • SignOut      Press this button to sign out of the call queue. Press “menu” button on keypad to select “ok”. This will be displayed once the agent is signed in to the call queue.  Table 9:  LCD Icons  Icon  LCD Icon Definitions  DND (idle): ON when “Do Not Disturb” is activated in idle screen  DND (talking): ON when “Do Not Disturb” is activated in talking  Forward All: INDICATES all incoming calls will be forwarded to the configured number  Forward on Busy: INDICATES calls will be forwarded when phone is busy  Forward on No Answer: INDICATES calls will be forwarded if the phone does not answer  Forward All and No Answer: INDICATES calls will be forwarded if Forward All and Forward on No Answer are enabled  Keypad Locked: ON when the keypad is locked
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 13 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011   Enter Keypad Unlock Password  Voice Mail: ON when there are new voice messages  Network Status: Network is down  Missed Call Icon: Indicates missed call(s)  Save Call Record: Indicates phone system writing the call records into the flash. It might take 10 to 20 seconds to finish the process  Waiting For Response: Please wait for the phone system to response before the keypad entry.  Handset Mode  Speaker Mode  Headset Mode  Table 10:  GXP21xx Keypad Buttons Key Button  Key Button Definitions LINE KEYS  Line keys with LED, can be configured to different SIP profiles HOLD  Place ACTIVE call on hold SEND  Press to dial out the number or redial when the phone is idle TRANSFER  Transfer an ACTIVE call to another number CONF  Press CONF button to connect Calling/Called party into conference MUTE  Mute an active call HEADSET  Press HEADSET key to answer/hang up phone calls while using headset. It also allows user to toggle between headset and speaker DND  Enable/Disable DND (Not applicable on GXP2100) INTERCOM  Press to use intercom if intercom user ID is configured in web GUI MENU/OK  Press to enter menu when phone is in idle. Use it as ENTER key in keypad configuration  Enter to retrieve voice mails or other messages  Brings phonebook on screen  Enable/Disable hands-free speaker
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 14 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011   Enable/Disable handset mode ; or used as SEND/REDIAL   Navigation keys “Up” “Down” “Left” and “Right” •  Press to navigate in menu options •  During the call, press “Up” “Down” to adjust volume  •  When the phone is idle, press “Up” to view missed call; press “Down” to view phonebook 0 – 9, *, #  Standard phone keypad; press # key to send call; press * key to for IVR functions Multi Purpose Keys  18 MPKs in GXP2110 and 7 MPKs in GXP2120 used for BLF, Speed dial and etc   MAKING PHONE CALLS Handset, Speakerphone and Headset Mode  The GXP21xx allows you to make phone calls via handset, speakerphone, or headset mode. During the active calls the user can switch between the handset and the speaker by pressing the speaker key. For headsets to operate, the user must plug the headset to an RJ9 or 2.5mm port on the phone, which allows the user to pick-up, speak, or hang-up calls.  Multiple SIP Accounts and Lines  GXP2120 can support up to 6 independent SIP accounts; GXP2110/GXP2100 can support up to 4 independent SIP accounts. Each account is capable of independent SIP server, user and NAT settings. Each of the line buttons is “virtually” mapped to an individual SIP account. The name of each account is conveniently printed next to its corresponding button. In off-hook state, select an idle line and the name of the account (as configured in the web interface) is displayed on the LCD and a dial tone is heard.  For example: Configure ACCOUNT 1 and ACCOUNT 2 with Account Name as “VoIP 1”, “VoIP 2”, respectively and ensure that they are active and registered. When LINE1 is pressed, you will hear a dial tone and see “VoIP 1” on the LCD display; when LINE2 is pressed, you will hear a dial tone and see “VoIP 2” on the LCD display.  To make a call, select the line you wish to use. The corresponding LINE LED will light up in green. User can switch lines before dialing any number by pressing the same LINE button one or more times. If you continue to press a LINE button, the selected account will circulate among the registered accounts.    For example: when LINE1 is pressed, the LCD displays “VoIP 1”; If LINE1 is pressed twice, the LCD displays “VoIP 2” and the subsequent call will be made through SIP account 2.   Incoming calls to a specific account will attempt to use its corresponding LINE if it is not in use. When the “virtually” mapped line is in use, the GXP21xx will flash the next available LINE (from left to right or from top to bottom for Multi Purpose Keys) in red. A line is ACTIVE when it is in use and the corresponding LED is red.    Completing Calls
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 15 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  There are six ways to complete a call:  1.  DIAL: To make a phone call. •  Take Handset/SPEAKER/Headset off-hook  or press an available LINE key (activates speakerphone)  or press the NEW CALL soft-key.   •  The line will have a dial tone and the primary line (LINE1) LED is red.   If you wish, select another LINE key (alternative SIP account).   •  Enter the phone number  •  Press the SEND key  or press the “DIAL” soft-key.  2.  REDIAL: To redial the last dialed phone number. When redialing the phone will use the same SIP account as was used for the last call. Thus, when the third SIP account was made for the last call/call attempt, the phone will use the third account to redial. •  When the phone is onhook, press SEND key directly to redial or •  Take Handset/SPEAKER/Headset off-hook or press an available LINE key (activates speakerphone), the corresponding LED will be red.  • Press the SEND button or press the REDIAL soft-key.  3.  USING CALL HISTORY: To call a phone number in Call History When using the call history, the phone will use the same SIP account as was used for the last call/call attempt. Thus, when returning a call made to the third SIP account, the phone will use the third SIP account return the call. •  Press the MENU button to bring up the Main Menu.   •  Select Call History and then “Answered Calls” “Dialed Calls”, “Missed Calls” “Transferred Calls” or “Forwarded Calls” depending on your needs •  Select phone number using the arrow keys •  Press OK to select  •  Press OK again to dial.  4.  USING THE PHONEBOOK: To call a phone number from Phonebook Each entry in the phonebook can be attached to an individual SIP account. The phone will use that SIP account to make the phone call.  •  Go to the phonebook by: i.  Pressing the phonebook button (bottom, left-hand side of phone), or ii.  Pressing the DOWN arrow key, or iii.  Pressing the menu button and selecting “Phone book” iv. Pressing MENU •  Select the phone number by using the arrow keys •  Press OK so select •  Press OK again to dial.  5.  PAGING/INTERCOM:   The paging/intercom function can only be used if the SERVER/PBX supports this feature and both the phones and PBX are correctly configured.  • Take the Handset/SPEAKER/Headset off-hook •  Select the LINE key associated with account •  Press OK key to display LCD: LINEx: PAGE.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 16 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  •  Dial the phone number you want to Page/Intercom  •  Press SEND key.    6.  VIA CALL RETURN: On the GXP21xx, the Multiple Purpose Key (programmable hard key) has to be configured as Call Return under Web GUI->Basic Settings configuration. No user name and user ID has to be set on the Multiple Purpose Key for Call Return. After pressing the Call Return key, the last answered number will be dialed out. •  Take handset off hook  •  Press the configured Call Return key   NOTE:  •  Dial-tone and dialed number display occurs after the handset is off-hook and the line key is selected. The phone waits 4 seconds (by default; No key Entry Timeout) before sending and initiating the call. Press the “SEND” or “#” button to override the 4 second delay.   Speed Dial  The Multi Purpose Key buttons, located on the right-hand-side of the phone, can be configured for speed dial. Press the speed dial button to automatically call the assigned extension.   If “Speed Dial Via Active Account” is selected instead of “Speed Dial” on that Multi Purpose Key, it will act just like speed dial but based on the current active account. For instance, if the phone is offhook and account 4 is active, by pressing this key it will call the configured speed dial number using account 4.    NOTE:  •  The multi-functional buttons will function as LINE keys when all LINEs are busy. The LED will flash in red to indicate an incoming call. Press the button to pick up the call. If any one of the Multi Purpose Keys is associated with a call, the button’s speed dial/BLF function will not work.    Making Calls using IP Addresses  Direct IP Call allows two phones to talk to each other in an ad-hoc fashion without a SIP proxy. VoIP calls can be made between two phones if: •  Both phones have public IP addresses, or  •  Both phones are on a same LAN/VPN using private or public IP addresses, or  •  Both phones can be connected through a router using public or private IP addresses (with necessary port forwarding or DMZ) To make a direct IP call, please follow these steps: 1.  Press MENU button to bring up MAIN MENU 2.  Select “Direct IP Call” using the arrow-keys 3.  Press OK to select 4.  Input the 12-digit target IP address. (Please see example below) 5.  Press OK key to initiate call  To make a quick IP call, please see next section.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 17 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  For example:  If the target IP address is 192.168.1.60 and the port is 5062 (e.g. 192.168.1.60:5062), input the following: 192*168*1*60#5062 -   The “ * ” key represent the dot“.” ; The “#” key represent colon “:”. Press OK to dial out.  Quick IP Call Mode  The GXP21xx also supports Quick IP call mode. This enables the phone to make direct IP-calls, using only the last few digits (last octet) of the target phone’s IP-number. This is possible only if both phones are in under the same LAN/VPN. This simulates a PBX function using the CMSA/CD without a SIP server. Controlled static IP usage is recommended.   Setting up the phone to make Quick IP calls  To enable Quick IP calls, the phone has to be setup first. This is done through the web-setup function. In the “Advanced Settings” page, set the "Use Quick IP-call mode to YES. When #xxx is dialed, where x is 0-9 and xxx <=255, a direct IP call to aaa.bbb.ccc.XXX is completed. “aaa.bbb.ccc” is from the local IP address regardless of subnet mask. The numbers #xx or #x are also valid. The leading 0 is not required (but OK).  For example:   192.168.0.2 calling 192.168.0.3 -- dial #3 follow by SEND or # 192.168.0.2 calling 192.168.0.23 -- dial #23 follow by SEND or # 192.168.0.2 calling 192.168.0.123 -- dial #123 follow by SEND or # 192.168.0.2: dial #3 and #03 and #003 results in the same call -- call 192.168.0.3  NOTE:   •  If you have a SIP Server configured, a Direct IP-IP still works. If you are using STUN, the Direct IP-IP call will also use STUN. Configure the “Use Random Port” to “NO” when completing Direct IP calls.  ANSWERING PHONE CALLS Receiving Calls  1.  Incoming single call: Phone rings with selected ring-tone. The corresponding account LINE flashes red. Answer call by taking Handset/SPEAKER/Headset off hook or pressing SPEAKER or by pressing the corresponding account LINE button.   2.  Incoming multiple calls: When another call comes in while having an active call, the phone will produce a Call Waiting tone (stutter tone). Next available lines will flash red (as described in section 4.3.2). Answer the incoming call by pressing its corresponding LINE button. The current active call will be put on hold.  3.  Paging/Intercom Enabled: Phone beeps once and automatically establishes the call via SPEAKER. (PBX or Server must also supports this feature)  Do Not Disturb Press the “DND” button to enable/disable “Do Not Disturb” or set DND in MENU->Preference (for GXP2100), the corresponding icon will be on the right hand side of the screen. When DND is enabled, the phone will not ring and send caller directly to voicemail.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 18 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  PHONE FUNCTIONS DURING A PHONE CALL Call Waiting/ Call Hold  1.  Hold: Place a call on hold by pressing the “HOLD” button.  2.  Resume: Resume call by pressing the corresponding blinking LINE.  3.  Multiple Calls: Automatically place ACTIVE call on “HOLD” by selecting another available LINE to place or receive another call. Call Waiting tone (stutter tone) audible when line is in use. Mute  1.  Press the MUTE button to enable/disable muting the microphone.  2.  The “Line Status Indicator” will show “LINEx: SPEAKING” or “LINEx: MUTE” to indicate whether the microphone is muted. Call Transfer  GXP21xx supports both Blind and  Attended transfer. Also, users could make auto-attended transfer when this feature is enabled from web GUI.  1.  Blind Transfer: Press “TRANSFER” button, then dial the number and press the “SEND” button to complete transfer of active call.   2.  Attended Transfer: Press “LINEx” button to make a call and automatically place the ACTIVE LINE on HOLD. Once the call is established, press “TRANSFER” key then the LINE button of the waiting line to transfer the call. Hang up the phone call after “Transfer Successful” is displayed in the screen. 3.  Auto-Attended Transfer: Users could enable Auto-Attended Transfer under Web GUI->Advanced Setting Page. During the first call, press “TRANSFER” hard button and it will bring up another line. The first call will be on hold. Enter the number and press SEND key to establish the second call (If pressing soft key “transfer” after entering the number, it will do blind transfer instead). After the second call is established, press “TRANSFER” hard button again. Now the phone will hang up and the call will be transferred. NOTE:   •  To transfer calls across SIP domains, SIP service providers must support transfer across SIP domains. Blind transfer will usually use the primary account SIP profile. 5-Way Conferencing  GXP21xx can host conference calls and supports up to 5-way conference calling (Excludes GXP2100 which supports up to 4-way).   1.  Initiate a Conference Call:     Establish a connection with two or more parties  Press CONF button   Choose the desired line to join the conference by pressing the corresponding LINE button   Repeat previous two steps for all other parties that would like to join the conference. This can be done at any time. However, if a new call comes in, the other calls will be placed on hold and the host will have to individually re-join the held lines back into the conference by repeating the previous two steps again   2. Cancel Conference:
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 19 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011    If after pressing the “CONF” button, a user decides not to conference anyone, press CONF again or the original LINE button   This will resume two-way conversation  3.  End Conference:    Press HOLD to end the conference call and put all parties on hold;   To speak with an individual party, select the corresponding blinking LINE.  GXP21xx also supports Easy Conference mode. In Easy Conference mode, users can initiate conference by calling another number when the current line is in talking or conference. Also the conference can be re-established by pressing the ReConf softkey when the conference is on hold. Easy Conference mode can be used combined with the traditional ways to establish the 5-way conference above.  1.  Initiate a Conference Call:    Establish one call   Press CONF button and a new line will be brought up   Dial the number and press SEND button to establish the second call   Press CONF button again or press the ConfCall softkey to establish the 3-way conference  2.  Join More Parties in Existed Conference:    Establish conference call   Press CONF button and a new line will be brought up   Dial the number and press SEND button to establish the new call   Press CONF button again or press the ConfCall softkey to join the new party in the existed conference  3. Hold Conference:    During the conference, press HOLD button and the conference will be put on hold                 -  To resume the conference, press the ReConf softkey                              -  To split the conference and resume the call with each party, press the corresponding                                         line key  4. End Conference:    If the users decide not to conference after establishing the second call, press EndCall softkey instead of ConfCall softkey/CONF button. It will end the second call and the screen will show the first call/conference is on hold.   During the conference, press EndCall softkey or hang up to end the conference  NOTE:  •  The party that starts the conference call has to remain in the conference for its entire duration, you can put the party on mute but it must remain in the conversation. Also, this is not applicable when the feature “Transfer on call hangup” is turned on. •  When using Easy Conference mode, press SEND button to establish the second call after entering the number instead of using “#”.  Voice Messages (Message Waiting Indicator)
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 20 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  A blinking red MWI (Message Waiting Indicator) indicates a message is waiting. Press the Message button to retrieve the message. An IVR will prompt the user through the process of message retrieval. Press a specific LINE to retrieve messages for a specific line account.    NOTE: •  Each line has a separate voicemail account. Each account requires a voicemail portal number to be configured in the “Voicemail User ID” field. •  To check which line account has a message 1) press the message button (this always checks the primary account), 2) check each line for stutter tone or 3) check missed calls using the menu.   Busy Lamp Field  The Multi Purpose Key buttons can be configured for Busy Lamp Field function with a specified account. When BLF is configured on one of the multi-functional buttons, the Speed Dial function will work when that line is not in use. Call Pick Up is supported when user presses a flashing BLF key.  Shared Call Appearance (SCA)  The GXP21xx phone supports shared call appearance by Broadsoft standard. This feature allows members of the SCA group to shared SIP lines and provides status monitoring (idle, active, progressing, hold) of the shared line. When there is an incoming call designated for the SCA group, all of the members of the group will be notified of an incoming call and will be able to answer the call from the phone with the SCA extension registered.   All the users that belong to the same SCA group will be notified by visual indicator when a user seizes the line and places an outgoing call, and all the users of this group will not be able to seize the line until the line goes back to an idle state or when the call is placed on hold. (With the exception of when multiple call appearances are enabled on the server side).   In the middle of the conversation, there are two types of hold: Public Hold and Private Hold. When a member of the group places the call on public hold, the other users of the SCA group will be notified of this by the red-flashing button and they will be able to resume the call from their phone by pressing the line button. However, if this call is placed on private-hold, no other member of the SCA group will be able to resume that call.   To enable shared call appearance, the user would need to register the shared line account on one of the accounts on the phone. In addition, they would need to navigate to “Settings”->”Basic Settings” on the web UI and set the line to “Shared Line” with the corresponding account. If the user requires more shared call appearances, the user can configure multiple line buttons to be “shared line” buttons associated with the account.    CALL FEATURES  The GXP21xx supports traditional and advanced telephony features including caller ID, caller ID w/name, call forward/transfer/park/hold as well as intercom/paging and BLF.     Table 11:  GXP21xx Call Features
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 21 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Key  Call Features *30  Block Caller ID (for all subsequent calls) Offhook and dial “*30”. *31  Send Caller ID (for all subsequent calls) Offhook and dial “*31”. *67  Block Caller ID (per call) Offhook, dial “*67” and then enter the number to dial out. *82  Send Caller ID (per call) Offhook, dial “*82” and then enter the number to dial out. *70  Disable Call Waiting (per Call) Offhook, dial “*70” and then enter the number to dial out. *71  Enable Call Waiting (per Call) Offhook, dial “*71” and then enter the number to dial out. *72  Unconditional Call Forward  Offhook, dial “*72”. Then enter the number to forward the call and press “#” or OK softkey. *73  Cancel Unconditional Call Forward Offhook, dial “*73” and the phone will hang up. *90  Busy Call Forward Offhook, dial “*90”. Then enter the number to forward the call and press “#” or OK softkey. *91  Cancel Busy Call Forward Offhook, dial “*91” and the phone will hang up. *92  Delayed Call Forward Offhook, dial “*92”. Then enter the number to forward the call and press “#” or OK softkey. *93  Cancel Delayed Call Forward Offhook, dial “*93” and the phone will hang up.    CUSTOMIZED LCD SCREEN & XML  Grandstream GXP21xx Enterprise IP phone support both simple and advanced XML applications: 1) XML Custom Screen and 2) XML Downloadable Phonebook. For more information on how to create a downloadable XML phonebook, creating a custom idle screen and/or reprogramming the softkeys on GXP21xx, please visit our website at: http://www.grandstream.com/support
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 22 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011    Configuration Guide The GXP21xx can be configured in two ways. Firstly, using the Key Pad Configuration Menu on the phone; secondly, through embedded web-configuration menu.  CONFIGURATION VIA KEYPAD  To enter the MENU, press the round button. Navigate the menu by using the arrow keys: up/down and left/right. Press the OK button to confirm a menu selection. The phone automatically exits MENU mode with an incoming call, the phone is off-hook or the MENU mode if left idle for 20 seconds. Press the MENU button to enter the Key Pad Menu. The menu options available are listed in table 12.  Table 12:  Key Pad Configuration Menu Item  Description Call History  Displays histories of answered, dialed, missed, and transferred and forwarded calls Status  Displays the network status, account status, software version, MAC-address and hardware version of the phone Phone Book  Displays the phonebook and downloads phonebook XML LDAP Directory  Displays the LDAP directory and downloads directory Instant Messages  Goes to instant messages Direct IP Call  Dials IP address for direct IP call Preference  Press Menu button to enter this sub menu including: • Do NOT Disturb DND (Do Not Disturb) function could be turned on or off in the “Do Not Disturb” menu. • Ring Tone Choose different ring tones in the “Ring Tone” menu. • Ring Volume Press Menu button to hear the selected ring volume, press “←” or “→” to hear and adjust the ring tone volume. • LCD Contrast Press “←” or “→” to adjust the LCD contrast. • LCD Brightness Press “←” or “→” to adjust the LCD brightness for active/idle screen. • Download SCR XML The phone will download the custom idle screen if available. • Erase Custom SCR Custom idle screen will be erased and will be replaced with default logo. • Display Language
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 23 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Users can choose English, Simplified Chinese, Traditional Chinese, Korean, Japanese, Italian, Spanish, French, German, Portuguese, Russian, Croatian, Hungarian, Polish, Slovenian, Arabic, Hebrew or Dutch which are built in the phone. Users could select Automatic for local language based on IP location if available. Also, the phone will download secondary language if available. • Time Settings Users can set the date and time on the phone.  Press Menu button to choose the menu item Press “←” or follow the soft keys to return to the main menu Config  Press Menu button to display the configuration selections: • SIP To change SIP server settings for SIP account (SIP Proxy, Outbound Proxy, SIP User ID, SIP Auth ID, SIP Password, SIP Transport and Audio). • Upgrade To configure the firmware server and Config server for upgrading or provisioning the phone.  • Factory Reset Key in the physical/MAC address on the back of the phone. Press OK softkey to reset to FACTORY DEFAULT setting. Do not use Factory Reset unless you want to restore factory settings. • Layer 2 QoS              Configure 802.1Q/VLAN Tag and priority value. Factory Functions  Press Menu to display the factory function items including • Audio Loopback              Speak into the handset. If you hear your voice in the handset, your audio               is working fine. Press Menu button to exit the mode. • Diagnostic Mode All LEDs will light up. Press any key on the keypad, to display the button name in the LCD. Lift and put back the handset or press Menu button to exit the diagnostic mode.  Press ‘←’ to return the main menu Network To select IP mode (DHCP/Static IP/PPPoE); to setup PPPoE, IP address, Netmask, Gateway address and DNS Server 1 and DNS Server 2. Call Features  To enable/disable and configure Forward All, Forward Busy, Forward No Answer, No Answer Timeout, press Call Features and select the Account x to set the forward call features on this account. Reboot  Select on Reboot and press Menu button to reboot the device. Exit  Exit from this menu   Figure 2: Keypad GUI Flow
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 24 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011        Call History   Status   Phone Book   LDAP Directory   Instant Message   Direct IP Call   Preference    Config   Factory Functions   Network   Call Features   Reboot   Exit  MENU Answered CallsDialed Calls Missed Calls Transferred Calls Forwarded Calls Clear All Back Delete All Entries New Entry  Download Phonebook XML Delete All Entries Back Phone Book First Name: Last Name Number: Acct: Confirm Add: Cancel & Return: New Entry View DirectoryDownload Directory Search Configuration Back LDAP Directory  Select Filter Filter Value Back Search Configuration Clear AllBack Preference Do Not Disturb Ring Tone Ring Volume LCD Contrast LCD Brightness Download SCR XML Erase Custom SCR Display Language Time Settings Back SIP Upgrade Factory Reset Layer 2 QoS Back Audio Loopback Diagnostic Mode Back Factory Function Config Enable DND Disable DND Back Default Ring Ring1 Ring2  Ring 3 Back Do Not Disturb Ring Tone Account SIP Proxy Outbound Proxy SIP User ID SIP Auth ID SIP Password SIP Transport Audio Save  Cancel Firmware Server Config Server Upgrade Via Back 802.1Q/VLAN Tag Priority value Reset Vlan Config Back Upgrade Layer 2 QoS Instant Message Keypad/LED Diagnostic Diagnostic Mode SIP IP SettingPPPoE Settings IP Netmask Gateway DNS Server 1 DNS Server 2 BackNetwork Call History Items Account 1 Account 2 Account 3 Account 4 (Account 5 for GXP2120) (Account 6 for GXP2120   Call HistoryCall Features Forward All Forward Busy Forward No Answer No Answer Timeout Account X
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 25 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  CONFIGURATION VIA WEB BROWSER The GXP21xx embedded Web server responds to HTTP/HTTPS GET/POST requests. Embedded HTML pages allow a user to configure the IP phone through a Web browser such as Microsoft’s IE or Mozilla Firefox, Google Chrome.  Access the Web Configuration Menu  To access the phone’s Web Configuration Menu •  Connect the computer to the same network as the phone1 •  Make sure the phone is turned on and shows its IP address •  Start a Web-browser on your computer •  Enter the phone’s IP address in the address bar of the browser2 •  Enter the administrator’s password to access the Web Configuration Menu3  1  The Web-enabled computer has to be connected to the same sub-network as the phone. This can easily be done by connecting the computer to the same hub or switch as the phone is connected to. In absence of a hub/switch (or free ports on the hub/switch), please connect the computer directly to the phone using the PC-port on the phone.   2  If the phone is properly connected to a working Internet connection, the phone will display its IP address. This address has the format: xxx.xxx.xxx.xxx, where xxx stands for a number from 0-255. You will need this number to access the Web Configuration Menu. e.g. if the phone shows 192.168.0.60, please use “http://192.168.0.60” in the address bar your browser.  3  The default administrator password is “admin”; the default end-user password is “123”.  NOTE:   •  When changing any settings, always SUBMIT them by pressing “UPDATE” button on the bottom of the page. If, after having submitted some changes, more settings have to be changed, press the menu option needed. •  All the options under Basic Setting and Account Setting, and most of the options under Advanced Setting do not require reboot after submitting the changes. Under Advanced Setting, the parameters on network configuration require reboot after update. Definitions  This section will describe the options in the Web configuration user interface. As mentioned, a user can log in as an administrator or end-user.   Functions available for the end-user are: • Status: Displays the network status, account statuses, software version and MAC address of the phone • Basic: Basic preferences such as date and time settings, multi-purpose keys and LCD settings can be set here.  Additional functions available to administrators are: • Advanced Settings: To set advanced network settings, codec settings and XML configuration settings.  • Account X: To configure each of the SIP accounts.  • EXT X: To configure setting on extension module (Not applicable on the GXP2100)
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 26 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Table 13: Device Configuration - Status  MAC Address   The device ID, in HEXADECIMAL format. IP Address  This field shows IP address of GXP21xx. Product Model  This field contains the product model information. Part Number  This field contains the product part number. Software Version  • Prog: This is the main firmware release number, which is always used for identifying the software (or firmware) system of the phone. • Boot: Booting code version number • Core: Core code version number • Base: Base code version number • DSP: DSP code version number • Aux: Aux code version number System Up Time  This field shows system up time since the last reboot. System Time  This field shows the current time on the phone system. Registered  Indicates whether accounts are registered to the related SIP server. PPPoE Link Up  Indicates whether the PPPoE connection is enabled (connected to a modem). Service Status  • GUI: shows the GUI status - running or stopped • Phone: shows the phone status - running or stopped Core Dump  Download core dump file for troubleshooting when necessary.  Table 14:  Device Configuration – Settings/Basic Settings End User Password  This contains the password to access the Web Configuration Menu. This field is case sensitive with a maximum length of 25 characters. IP Address  The  GXP21xx operates in three modes:  1.  DHCP mode: The GXP21xx acquires its IP address from the first DHCP server it discovers on its LAN. The DHCP option is reserved for NAT router mode. In DHCP mode, all the field values for the Static IP mode are not used (even though they are still saved in the Flash memory). 2.  PPPoE mode: To use the PPPoE feature, set the PPPoE account settings (PPPoE account ID, PPPoE password and PPPoE service name). The GXP21xx establishes a PPPoE session if any of the PPPoE fields is set. 3.  Static IP mode: Configure all of the following fields:  IP address, Subnet Mask, Gateway, DNS Server 1, DNS Server 2 and Preferred DNS Server.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 27 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  802.1x Mode  This option allows the user to enable/disable 802.1x mode on the phone. The default value is disabled. To enable 802.1x mode, this field should be set to EAP-MD5. Once enabled, the user would be required to enter the following information below to be authenticated on the network:  • Identity • MD5 Password  Line Keys x  This allows the user to configure the account mapped to each line key, as well as enabling Shared Call Appearance for the line. Options available for Key Mode are :  1. Line 2. Shared Line Multi Purpose Keys  These options are used to assign a function to the corresponding Multi Purpose Key.Options available are:   1. Speed Dial 2.  BLF (Busy Lamp Field) This option has to be supported on the PBX and it indicates the status of the extension. The three possible states are idle (green), busy (red), ringing (blinking red). 3. Presence Watcher This option has to be supported by a presence server and it is tied to the “Do not disturb” status of the phone. 4. Eventlist BLF This option is similar to the BLF option but in this case the PBX collects the information from the phones and sends it out in one single notify message. PBX has to support this feature. 5.  Speed Dial Via Active Account This option will act just like speed dial, but based on the current active account. For instance, if the phone is offhook and account 4 is active, it will call the configured speed dial number using account 4. 6. Dial DTMF This option will allow users to enter a series of DTMF digits as configured in the UserID field for the MPK during the call. When using Dial DTMF, “Enable MPK Sending DTMF” (under Advanced Setting) has to be set to “Yes”. This option is not binding to the account.  7.  Call Return.  The last answered calls will be dialed out. The username and UserID should be blank when using Call Return. This option is not binding to the account.  Note: The functions from 1 to 5 are connected to one of the accounts and have target username and UserID. Time Zone  This parameter controls the date/time display according to the specified time zone. If “Allow DHCP Option 2 to override Time Zone setting” is checked, the time zone will be overridden by the DHCP server.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 28 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Self-Defined Time Zone  This parameter allows the users to define their own time zone.  The syntax is: std offset dst [offset], start [/time], end [/time]  Default is set to: MTZ+6MDT+5,M4.1.0,M11.1.0  MTZ+6MDT+5,  This indicates a time zone with 6 hours offset with 1 hour ahead which is U.S central time. If it is positive (+) if the local time zone is west of the Prime Meridian (A.K.A: International or Greenwich Meridian) and negative (-) if it is east.  M4.1.0,M11.1.0  The 1st number indicates Month: 1,2,3.., 12 (for Jan, Feb, .., Dec)  The 2nd number indicates the nth iteration of the weekday: (1st Sunday, 3rdTuesday…)  The 3rd number indicates weekday: 0,1,2,..,6( for Sun, Mon, Tues, … ,Sat)  Therefore, this example is the DST which starts from the first Sunday of April to the 1st Sunday of November. Weather Update  By default, “Enable Weather Update:” is set to “Yes”. If set to “No”, weather information will not display on the phone.  Settings to customize the display of weather via:  •  City Code – Enter city code •  Update Interval – Refresh time in minutes •  Degree Unit – Select Automatic, Fahrenheit or Celsius  Weather information is displayed on GXP21xx LCD when “Enable Weather Update” is set to “Yes” and pressing the “SwitchSCR” soft-key once. Stock Update  By default, “Enable Stock Update:” is set to “Yes”. If set to “No”, stock information will not display on the phone.  Settings to customize the display of stock via:  •  Stock Code – Enter stock code  Stock information is displayed in GXP21xx LCD when “Enable Stock Update” is set to “Yes” and pressing the “SwitchSCR” soft-key twice. Currency Update  By default, “Enable Currency Update:” is set to “Yes”. If set to “No”, currency information will not display on the phone.  Settings to customize the display of currency via:  •  Currency Code – Enter currency code  Currency information (foreign currencies to US dollar) is displayed in GXP21xx LCD when “Enable Currency Update” is set to “Yes” and pressing the “SwitchSCR” soft-key three times. LCD Backlight Brightness  Set the LCD brightness level for idle state and active state. Range from 0 to 8 where 0 means off and 8 means the brightest. LCD Contrast  Set LCD contrast. Range from 0 to 20.  Time Display Format  LCD time display in 12 hour or 24 hour format. Disable in-call DTMF display  Default is “No”. This field is used to hide the keypad input during a call.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 29 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Disable Missed Call Backlight  Default is “No”. By default, LCD backlight will light up whenever there is a missed call. HEADSET Key Mode  Default Mode:  -  Toggle to Headset when using Speaker/Handset -  Dial, pick up call or hang up call using Headset   Toggle Headset/Speaker:  -  toggle between using Headset and using Speaker Headset TX gain (dB)  Set headset TX gain to -6, 0 or +6. Default is 0 db. Headset RX gain (dB)  Set headset RX gain to -6, 0 or +6. Default is 0 db.  Advanced User configuration includes not only the end user configuration, but also advanced configuration such as SIP configuration, Codec selection, NAT Traversal Setting and other miscellaneous configuration.    Table 15:  Device Configuration – Settings /Advanced Settings Admin  Password Administrator password. Only the administrator can access the “Advanced Settings” and “Account Settings” page. Password field is purposely blank for security reasons after clicking update and saved. The maximum password length is 25 characters. Layer 3 QoS  This field defines the layer 3 QoS parameter. It is the value used for IP Precedence or Diff-Serv or MPLS. Default value is 12. Layer 2 QoS  This contains the value used for layer 2 802.1Q/VLAN tag and 802.1p priority value.Default setting is 0. Local RTP port  This parameter defines the local RTP port pair used to listen and transmit. It is the base RTP port for channel 0. When configured, channel 0 will use this port _value for RTP; channel 1 will use port_value+2 for RTP. Local RTP port ranges from 1024 to 65400 and must be even. The default value is 5004. Use Random Port  This parameter, when set to “Yes”, will force random generation of both the local SIP and RTP ports. This is usually necessary when multiple GXPs are behind the same NAT. Default is “No”. Keep-alive interval  This parameter specifies how often the GXP21xx sends a blank UDP packet to the SIP server in order to keep the “hole” on the NAT open. Default is 20 seconds. Use NAT IP  NAT IP address used in SIP/SDP message. Default is blank. STUN Server  IP address or Domain name of the STUN server. STUN resolution result will display in the STATUS page of the Web UI.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 30 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Firmware Upgrade and Provisioning  Allows the user to select the following options for firmware upgrade:  •  Always Check for New Firmware •  Check New Firmware only when F/W pre/suffix changes •  Always Skip the Firmware Check.   Firmware upgrade may take up to 10 minutes depending on network environment. Do not interrupt the firmware upgrading process.  Note: Grandstream strongly recommends that the user upgrade firmware locally in a LAN environment if using TFTP to upgrade. Please DO NOT interrupt the upgrade process (especially the power supply) as this will damage the device. XML Config File Password  The password used for encrypting the XML configuration file using OpenSSL. This is required for the phone to decrypt the encrypted XML configuration file.  HTTP/HTTPS User Name The user name for the HTTP/HTTPS server.  HTTP/HTTPS Password  The password for the HTTP/HTTPS server.  Upgrade Via  This field allows the user to choose the firmware upgrade method: TFTP, HTTP or HTTPS.  Firmware Server Path  Defines the server path for the firmware server. It can be different from the Configuration server which is used for provisioning.  Config Server Path  Defines the server path for provisioning; it can be different from the firmware server. Firmware File Prefix/Postfix  Default is blank. If configured, GXP21xx will request the firmware file with the prefix/postfix and only the firmware with the matching encrypted prefix will be downloaded and flashed into the phone.  This setting is useful for ITSPs. End user should keep it blank.  Config File  Prefix/Postfix  Default is blank. If configured, GXP21xx will request the config file with the prefix/postfix and only the file with the matching encrypted prefix will be downloaded and flashed into the phone.  This setting is useful for ITSPs. End user should keep it blank. Allow DHCP Option 43 and Option 66 to override server Default is “Yes”. This allows device gets provisioned from the server automatically.Automatic Upgrade  This function is used by ITSP. End user should NOT touch these parameters.  Default is “No”. Choose “Yes” to enable automatic HTTP upgrade and provisioning.In “Check for upgrade every” field, enter the number of minutes to check the HTTP server for firmware upgrade or configuration changes. When set to “No”, the phone will only perform HTTP upgrade and configuration check once at boot up. Authenticate Conf File  Default is “No”. If set to “Yes”, configuration file would be authenticated before acceptance. End user should use default setting.  Enable TR-069  Default is “No”. ACS URL  URL for TR-069 Auto Configuration Servers (ACS).
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 31 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  TR-069 Username  Enter username for TR-069. TR-069 Password  Enter password for TR-069. Periodic Inform Enable  Enable periodic inform. Default is “No”. Periodic Inform Interval  When enabling periodic inform, set up the periodic inform interval. Connection Request Username  Enter the connection request username. Connection Request Password  Enter the connection request password. Authentication Method  Select the authentication method among “No authentication”, “Basic” or “Digest”. Connection Request Port  Enter the connection request port. Phonebook XML Download  Selects the file download mode for the download server. Users can choose from TFTP/HTTP/No.  Phonebook XML Server Path  The URL/IP address of the phonebook download server. Phonebook Download Interval  The interval at which the phonebook will be downloaded from the download server (in Minutes). The default setting is 0.  Remove Manually-edited entries on Downloads   If set to “Yes”, the phone will remove the manually-edited entries in the old phonebook list before downloading the new file. The default setting is set to “Yes”. LDAP Directory  IP address or domain name of LDAP script server. Idle Screen XML Download  Enable XML Idle Screen download via TFTP or HTTP. Select whether to “Use Custom Filename” or not, and define the “XML server path”. Download Screen XML At Boot-up  The phone will download the idle screen xml file if set to “Yes”. The default setting is “No”. Use custom filename The phone will use custom filename specified in XML server path if set to “Yes”. The default setting is “No”. Idle Screen XML Server Path Specify the idle screen XML server path. Offhook Auto Dial  To configure a User ID/extension to dial automatically when the phone is taken offhook. Syslog Server  The IP address or URL of System log server. This feature is especially useful for ITSPs.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 32 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Syslog Level  Select the ATA to report the log level. Default is NONE. The level is one of DEBUG, INFO, WARNING or ERROR. Syslog messages are sent based on the following events: •  product model/version on boot up (INFO level) •  NAT related info (INFO level) •  sent or received SIP message (DEBUG level) •  SIP message summary (INFO level) •  inbound and outbound calls (INFO level) •  registration status change (INFO level) •  negotiated codec (INFO level) •  Ethernet link up (INFO level) •  SLIC chip exception (WARNING and ERROR levels) • memory exception (ERROR level)  The Syslog uses USER facility. In addition to standard Syslog payload, it contains the following components: GS_LOG: [device MAC address][error code] error message.  For example: May 19 02:40:38 192.168.1.14 GS_LOG: [00:0b:82:00:a1:be][000]. Ethernet link is up. Send SIP Log  When setting the “Yes”, phone will send out SIP Log to syslog server. Default setting is “No”. NTP server  This parameter defines the URI or IP address of the NTP (Network Time Protocol) serve. It is used to display the current date/time. Allow DHCP Option 42 to override NTP server  Default is “Yes”. This allows device gets provisioned for DHCP Option 42 from the server automatically. SSL Certificate  This defines the SSL certificate needed to access certain websites. SSL Private Key  This defines the SSL Private key. SSL Private Key Password   This defines the SSL private key password. Distinctive Ring Tone  Caller ID must be configured. Select a Distinctive Ring Tone 1 through 3 for a particular Caller ID. The GXP21xx will ONLY use selected ring tones for particular Caller IDs. For all other calls, the GXP21xx will use System Ring Tone. When selected and no Caller ID is configured, the selected ring tone will be used for all incoming calls. System Ring Tone  System ring tone. Default is North American standard.  Adjust system ring tone frequencies and cadences based on local telecom standard.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 33 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Call Progress Tones  Using these settings, users can configure ring or tone frequencies based on parameters from local telecom. By default, they are set to North American standard.Frequencies should be configured with known values to avoid uncomfortable high pitch sounds.   Syntax: f1=val,f2=val[,c=on1/off1[-on2/off2[-on3/off3]]];  (Frequencies are in Hz and cadence on and off are in 10ms)  ON is the period of ringing (“On time” in “ms”) while OFF is the period of silence. In order to set a continuous ring, OFF should be zero. Otherwise it will ring ON ms and a pause of OFF ms and then repeat the pattern. Up to three cadences are supported.  Intercom User ID  Configure intercom user ID when intercom is used. Disable Call Waiting  Default is “No”. If set to “Yes”, the call waiting feature will be disabled. Disable Call Waiting Tone  Default is “No”. If set to “Yes”, the call waiting tone will be disabled. Disable Direct IP Calls  Default is “No”. If set to “Yes”, direct IP calls will be disabled. Use Quick IP Call Mode  Dial an IP address under the same LAN/VPN segment by entering the last octet in the IP address.  In the Advanced Settings page there is an option “Use Quick IP-call mode”. Default setting is “No”. When set to “Yes”, and #XXX is dialed, where X is 0-9 and XXX <=255, phone will make direct IP call to aaa.bbb.ccc.XXX where aaa.bbb.ccc comes from the local IP address REGARDLESS of subnet mask.  #XX or #X are also valid so leading 0 is not required (but OK). See Quick IP Call Mode for details.  Disable Conference  Default is “No”. If set to “Yes”, conference will be disabled. Enable MPK Sending DTMF  Default is No. If set to “Yes”, Multi Purpose keys can be sent as DTMF during the call.  Disable DND Button  Default is “No”. If set to “Yes”, the “DND” button on keypad will be disabled.  Disable Transfer  Default is “No”. If set to “Yes”, transfer will be disabled. Auto-Attended Transfer  Default is “No”. If set to “Yes”, the phone will use attended transfer by default. Configuration via Keypad Menu  Configures the access control of configurations via the phone keypad menu. There are three modes:  • Unrestricted •  Basic Settings Only CONFIG option will not display in keypad MENU • Constraint Mode CONFIG, FACTORY FUNCTIONS and NETWORK options will not display in keypad MENU Enable STAR key Keypad locking  If enabled, when the phone is in idle screen, press and hold STAR key for 4 seconds and the keypad will be locked. The password to lock/unlock can be configured.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 34 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Do not escape “#” as %23 in SIP URI  Default is “No”. By default, # will be replaced as %23 in SIP URI. Display Language Allows user to choose preferred display language in web UI and keypad UI. Currently, the phone supports these languages: Arabic, German, English, Spanish, French, Hebrew, Croatian, Hungarian, Italian, Japanese, Korean, Dutch, Polish, Portuguese, Russian, Slovenian, Simplified Chinese and Traditional Chinese.  Note: The “Automatic” setting in language refers to Grandstream’s IP2Locationclient which when connected to Internet would attempt to lookup a database (driven by Grandstream) with the IP address for its geographical location.   Language file postfix allows the language file to have different postfixes so the phone can request a particular file. It will append an underscore "_" plus the string in the language file postfix.   The default language file name is "gxp.txt". If the field “Language File postfix “has "NL" string in it, then the phone will request "gxp_NL.txt" instead of "gxp.txt".  User can only load one secondary language. Supported downloadable language: Czech, Croatian, Estonian, French, German, Italian, Polish, Portuguese, Slovak, Slovenian and Spanish.  How to set up Download Language: This is similar to updating firmware in your local network environment.  1. Get the language file gxp.txt ready. Make sure the file is using UTF-8 encoding. 2. Copy gxp.txt to the firmware server directory using your local TFTP or HTTP server.  3. Access the advanced settings of the Web GUI, set “Display Language” to “Download Language” and enter the server path in Firmware Server Path. Select TFTP or HTTP for firmware upgrade. 4. Update and reboot the phone.    GXP21xx has up to six line appearances, each with an independent SIP account. Each SIP account requires its own configuration page. Their configurations are identical.   Table 16:  SIP Account Settings Account Active  This field indicates whether the account is active. The default value is “Yes”. Account Name  The name associated with each account - displayed on LCD. SIP Server  SIP Server’s IP address or Domain name provided by VoIP service provider. Secondary SIP Server  This field allows administrator to configure a backup SIP Server. Outbound Proxy  IP address or Domain name of Outbound Proxy, Media Gateway, or Session Border Controller. Used for firewall or NAT penetration in different network environment. If the system detects symmetric NAT, STUN will not work. ONLY outbound proxy can provide solution for symmetric NAT.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 35 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  SIP User ID  User account information provided by VoIP service provider (ITSP); either an actual phone number or formatted like one. Authenticate ID  SIP service subscriber’s Authenticate ID used for authentication. It can be identical to or different from SIP User ID. Authenticate Password  SIP service subscriber’s account password for GXP21xx to register to (SIP) servers of ITSP. Name  SIP service subscriber’s name that is used for Caller ID display. DNS Mode  The default is set to A Record. If users wish to locate the server by DNS SRV, users may select SRV or NATPTR/SRV. When "Use Configured IP" option is selected, if SIP server is configured as domain name, phone will not send DNS query, but use "Primary IP" or "Secondary IP" to send sip message if at least one of them are not empty. Primary IP  This option applies only if “Use Configured IP” is selected, the phone will send DNS query to the Primary IP. Insert IP address here. Backup IP 1  Insert the first back up IP here. Backup IP 2  Insert the second back up IP here. SIP Registration  This parameter controls sending REGISTER messages to the proxy server. The default setting is “Yes”. Unregister on Reboot  Default is “No”. If set to “Yes”, the SIP user’s registration information will be cleared on reboot. Register Expiration  This parameter allows user to specify the time frequency (in minutes) that GXP21xx refreshes its registration with the specified registrar. The default interval is 60 minutes. The maximum interval is 65,535 minutes (about 45 days). Reregister Before Expiration   This parameter allows user to specify the time frequency (in seconds) that GXP21xx sends out a re-registration request before the Register Expiration. By default is 0 second.  Local SIP Port  This parameter defines the local SIP port used to listen and transmit. The default value for Account 1 is 5060. It is 5062, 5064, 5066 for Account 2, Account 3 and Account 4 (5068 for Account 5 and 5070 for Account 6) respectively. SIP Registration Failure Retry Wait Time  Retry registration if the process failed. Default is 20 seconds. SIP T1 Timeout  RFC 3261 SIP T1 timer. Default is 0.5 second. SIP T2 Interval  RFC 3261 SIP T2 timer. Default is 4 seconds. SIP Transport  Choose SIP Transport between UDP and TCP. Default is UDP. SIP URI Scheme when using TLS  Select “sip:” or “sips:”. Default is “sips:”.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 36 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Use Actual Ephemeral Port in Contact with TCP/TLS Enable to use actual ephemeral port in contact with TCP/TLS. Default is “No”. Check Domain Certificate  Enable to check the domain certificate. Default is “No”. Remove OBP from Route  The SIP Extension notifies the SIP server that it is behind a NAT/firewall. Validate Incoming Messages  This configuration selects whether or not the incoming messages should be validated. Support SIP Instance ID  Selects whether or not SIP Instance ID is supported.   NAT Traversal  This parameter activates the NAT traversal mechanism. It has options: No, STUN, Keep-Alive, UPnP, Auto, VPN.   If selecting STUN and a STUN server is also specified, the phone performs according to the STUN client specification. Using this mode, the embedded STUN client detects if and what type of NAT/Firewall configuration is used. If the detected NAT is a Full Cone, Restricted Cone, or a Port-Restricted Cone, the phone will use its mapped public IP address and port in all of its SIP and SDP messages.   If selecting Keep-Alive with no specified STUN server, the GXP21xx will periodically (every 20 seconds or so) send a blank UDP packet (with no payload data) to the SIP server to keep the “hole” on the NAT open. SUBSCRIBE for MWI  Default is “No”. When set to “Yes” a SUBSCRIBE for Message Waiting Indication will be sent periodically. SUBSCRIBE for Registration  Default is “No”. When set to “Yes” a SUBSCRIBE for Registration will be sent periodically. Feature Key Synchronization  Default is “No”. This option is to synchronize DND/Call Forward features with Broadsoft. When set to “Yes”, a SUBSCRIBE will be sent out periodically to the server. Then when DND/Call Forward features (Call Forward No Answer, Unconditional Call Forward and Call Forward on Busy) are configured or changed on the phone and the Broadsoft server side, those features will be synchronized on the phone side and the Broadsoft server side. PUBLISH for Presence  Enable Presence feature. Proxy-Require  SIP Extension to notify SIP server that the unit is behind the NAT/Firewall. Voice Mail UserID  When configured, user can access messages by pressing “MSG” button. This ID is usually the VM portal access number. Send DTMF  This parameter specifies the mechanism to transmit DTMF digit. There are 3 supported modes: in audio which means DTMF is combined in audio signal (not very reliable with low-bit-rate codec), via RTP (RFC2833), or via SIP INFO.  DTMF Payload Type  Sends DTMF using RFC2833. The default is 101.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 37 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Early Dial  Default is “No”. Use only if proxy supports 484 responses. Dial Plan Prefix  Sets the prefix added to each dialed number. Dial Plan  Dial Plan Rules: 1. Accepted Digits: 1,2,3,4,5,6,7,8,9,0 , *, #, A,a,B,b,C,c,D,d 2. Grammar: x - any digit from 0-9; a)  xx+ - at least 2 digit numbers b)  xx. - only 2 digit numbers c)  ^ - exclude d)  [3-5] - any digit of 3, 4, or 5 e)  [147] - any digit of 1, 4, or 7 f)  <2=011> - replace digit 2 with 011 when dialing g)  | - the OR operand  • Example 1: {[369]11 | 1617xxxxxxx} Allow 311, 611, and 911 or any 10 digit numbers with leading digits 1617 • Example 2: {^1900x+ | <=1617>xxxxxxx} Block any number of leading digits 1900 or add prefix 1617 for any dialed 7 digit numbers • Example 3: {1xxx[2-9]xxxxxx | <2=011>x+} Allows any number with leading digit 1 followed by a 3 digit number, followed by any number between 2 and 9, followed by any 7 digit number OR Allows any length of numbers with leading digit 2, replacing the 2 with 011 when dialed.  3. Default: Outgoing – {x+} Allow any length of numbers.  Example of a simple dial plan used in a Home/Office in the US: { ^1900x. | <=1617>[2-9]xxxxxx | 1[2-9]xx[2-9]xxxxxx | 011[2-9]x. | [3469]11 } Explanation of example rule (reading from left to right): • ^1900x. - prevents dialing any number started with 1900 • <=1617>[2-9]xxxxxx - allows dialing to local area code (617) numbers by dialing 7 numbers and 1617 area code will be added automatically • 1[2-9]xx[2-9]xxxxxx |- allows dialing to any US/Canada Number with 11 digits length • 011[2-9]x. - allows international calls starting with 011 • [3469]11 - allow dialing special and emergency numbers 311, 411, 611 and 911  Note: In some cases where the user wishes to dial strings such as *123 to activate voice mail or other applications provided by their service provider, the * should be predefined inside the dial plan feature. An example dial plan will be: { *x+ } which allows the user to dial * followed by any length of numbers. Delayed Call Forward Wait Time  Time waited before the call is forward to a number or VM.  Default is 20 seconds. Enable Call Features  Default is “Yes”. If set to “No”, Call transfer, Call Forwarding & Do-Not-Disturb are supported locally provided ITSP support those features. In addition, “ForwardAll” softkey will be hidden if call feature code is disabled for Account 1. Call Log  User can choose to disable Call Log and what kind of calls to log.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 38 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Session Expiration  The SIP Session Timer extension enables SIP sessions to be periodically “refreshed” via a SIP request (UPDATE, or re-INVITE. Once the session interval expires, if there is no refresh via a UPDATE or re-INVITE message, the session is terminated.   Session Expiration is the time (in seconds) at which the session is considered timed out, provided no successful session refresh transaction occurs beforehand. The default value is 180 seconds. Min-SE  Defines the minimum session expiration (in seconds). Default is 90 seconds.  Caller Request Timer  If set to “Yes”, the phone will use session timer when it makes outbound calls if remote party supports session timer. Callee Request Timer  If selecting “Yes”, the phone will use session timer when it receives inbound calls with session timer request.  Force Timer  If set to “Yes”, the phone will use session timer even if the remote party does not support this feature. If set to “No”, the session timer is enabled only when the remote party supports this feature. To turn off Session Timer, select “No” for Caller Request Timer, Callee Request Timer, and Force Timer. UAC Specify Refresher As a Caller, select UAC to use the phone as the refresher, or UAS to use the Callee or proxy server as the refresher.  UAS Specify Refresher  As a Callee, select UAC to use caller or proxy server as the refresher, or UAS to use the phone as the refresher. Force INVITE  Session Timer can be refreshed using INVITE method or UPDATE method. Select “Yes” to use INVITE method to refresh the session timer.  Enable 100rel  PRACK (Provisional Acknowledgment) method enables reliability to SIP provisional responses (1xx series). This is required to support PSTN inter-networking. Account Ring Tone  There are 4 uniquely defined ring tones: •  One (1) System Ring Tone: when selected, all calls will ring with system ring tone. •  Three (3) Customer Ring Tones: when selected, incoming calls from designated account will play selected ring tone.  Ring Timeout  Defines how long the phone will ring when receiving a call. Default is 60 seconds. Line-seize Timeout  Defines how long before the line can be seized when Share Line is used. Default is 15 seconds. Send Anonymous  If this parameter is set to “Yes”, the “From” header in outgoing INVITE message will be set to anonymous, essentially blocking the Caller ID from displaying. Anonymous Call Rejection  Default is “No”. If set to “Yes”, anonymous call will be rejected.  Auto Answer  Default is “No”. If set to “Yes”, GXP21xx will automatically switch on speaker to answer the incoming call. Set to Intercom/Paging mode, it will answer the call basedon the SIP info header from the server.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 39 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Allow Auto Answer by Call-Info  If the Call-Info header contains answer-after=0, the call be answered automatically (so called paging mode). Refer-To Use Target Contact  Default is “No”. If set to “Yes”,  then for Attended Transfer, the “Refer-To” header uses the transferred target’s Contact header information.  Transfer on Conference Hangup  Defines whether or not the call is transferred to the other party if the initiator of the conference hangs up.  Default setting is set to “No”. Preferred Vocoder  GXP21xx supports up to 7 different Vocoder types including G.711(a/µ) (also known as PCMU/PCMA), G.723.1, G.729A/B, G.726-32, iLBC, G.722 (wide-band).  Configure Vocoders in a preference list that is included with the same preference order in SDP message. Enter the first Vocoder in this list by choosing the appropriate option in “Choice 1”. Similarly, enter the last Vocoder in this list by choosing the appropriate option in “Choice 8”.  SRTP Mode  Enable SRTP mode based on selection. Default is “No”.  Symmetric RTP  Selects whether or not symmetric RTP is supported. Silence Suppression  This controls the silence suppression/VAD feature of the audio codec G.723 and G.729. If set to “Yes”, when silence is detected, a small quantity of VAD packets (instead of audio packets) will be sent during the period of no talking. If set to “No”, this feature is disabled. Voice Frames per TX  This field contains the number of voice frames to be transmitted in a single Ethernet packet (be advised the IS limit is based on the maximum size of Ethernet packet is 1500 byte (or 120kbps)).   When setting this value, be aware of the requested packet time (ptime, used in SDP message) is a result of configuring this parameter. This parameter is associated with the first codec in the above codec Preference List or the actual used payload type negotiated between the 2 conversation parties at run time. E.g., if the first codec is configured as G.723 and the “Voice Frames per TX” is set to 2, then the “ptime” value in the SDP message of an INVITE request will be 60ms because each G.723 voice frame contains 30ms of audio. Similarly, if this field is set to 2 and the first codec is G.729 or G.711 or G.726, then the “ptime” value in the SDP message of an INVITE request will be 20ms.  If the configured voice frames per TX exceeds the maximum allowed value, the IP phone will use and save the maximum allowed value for the corresponding first codec choice. The maximum value for PCM is 10 (x10ms) frames; for G.726, it is 20 (x10ms) frames; for G.723, it is 32 (x30ms) frames; for G.729/G.728, 64 (x10ms) and 64 (x2.5ms) frames respectively.   Please be careful when editing these parameters. Adjusting these parameters will also change the dynamic jitter buffer. The GXP21xx has a patent dynamic jitter buffer handling algorithm. The jitter buffer range is 20 ~ 200 ms.  We recommend using the default settings provided. We do not recommend adjusting these parameters if you are an average user. Incorrect settings will affect the voice quality.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 40 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  No Key Entry Timeout  Default is 4 seconds. After the timeout, the phone will send out the dialed number. Use # as Dial Key  This parameter allows users to configure the “#” key as the “Send” (or “Dial”) key. If set to “Yes”, the “#” key will immediately send the call. In this case, this key is essentially equivalent to the “(Re)Dial” key. If set to “No”, the “#” key is included as part of the dial string. G723 Rate  Encoding rate for G723 codec. By default, 6.3kbps rate is set. G726-32 Packing Mode  Select “ITU” or “IETF” for G726-32 packing mode. iLBC Frame Size  iLBC packet frame size. Default is 20ms. For Asterisk PBX, 30ms might be required. iLBC Payload Type  Payload type for iLBC. Default value is 97. The valid range is between 96 and 127. eventlist BLF URI  If the server supports this feature, user needs to configure an "eventlist BLF" URI on the service side (i.e.: BLF1006@myserver.com)On the GXP21xx, under Account page, fill in the ""eventlist BLF" field with the URI without the domain. (i.e.: BLF1006). Under Basic Settings, please select "eventlistBLF" in the Multi Purpose Key then choose account number, enter username and user id.  Conference URI  Configure the conference URI when using Broadsoft N-way calling feature. Special Feature  Default is Standard. Choose the selection to meet special requirements from Soft Switch vendors.   SAVING THE CONFIGURATION CHANGES  After the user makes a change to the configuration, press the “Update” button in the Configuration Menu. The web browser will then display a message window to confirm saved changes.  We recommend rebooting or powering cycle the IP phone after saving changes.   REBOOTING THE PHONE REMOTELY Press the “Reboot” button at the bottom of the configuration menu to reboot the phone remotely. The web browser will then display a message window to confirm that reboot is underway. Wait about 30 seconds to log in again.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 41 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Software Upgrade & Customization Software (or firmware) upgrades are completed via either TFTP or HTTP. The corresponding configuration settings are in the ADVANCED SETTINGS configuration page.   FIRMWARE UPGRADE THROUGH TFTP/HTTP To upgrade via TFTP or HTTP, select TFTP or HTTP upgrade method. “Upgrade Server” needs to be set to a valid URL of a HTTP server. Server name can be in either FQDN or IP address format. Here are examples of some valid URLs.   • firmware.mycompany.com:6688/Grandstream/1.2.3.5 • 72.172.83.110    There are two ways to set up the Upgrade Server to upgrade firmware: via Key Pad Menu or Web Configuration Interface.  Key Pad Menu        To configure the Upgrade Server via Key Pad Menu options, select “Config” from the Main Menu, then select “Upgrade”. Under this sub Menu, user can edit Upgrade Server in either an IP address format or FQDN format. Choose “Save and use TFTP” or “Save and use HTTP” to select upgrade method. Select “Reboot” from the Main Menu to reboot the phone.  Web Configuration Interface  To configure the Upgrade Server via the Web configuration interface, open the web browser. Enter the GXP21xx IP address. Enter the admin password to access the web configuration interface. In the ADVANCED SETTINGS page, enter the Upgrade Server’s IP address or FQDN in the “Firmware Server Path” field. Select TFTP or HTTP upgrade method. Update the change by clicking the “Update” button. “Reboot” or power cycle the phone to update the new firmware.  During this stage, the LCD will display the firmware file downloading process. Please do NOT disrupt or power down the unit. If a firmware upgrade fails for any reason (e.g., TFTP/HTTP server is not responding, there are no code image files available for upgrade, or checksum test fails, etc), the phone will stop the upgrading process and re-boot using the existing firmware/software.  Firmware upgrades take around 60 seconds in a controlled LAN or 5-10 minutes over the Internet. We recommend completing firmware upgrades in a controlled LAN environment whenever possible.   No Local TFTP/HTTP Server  For users who do not have a local TFTP/HTTP server, we provide a HTTP server on the public Internet for users to download the latest firmware upgrade automatically. Please check the Support/Download section of our website to obtain this HTTP server IP address: http://www.grandstream.com/support/firmware.  Alternatively, download and install a free TFTP or HTTP server to the LAN to perform firmware upgrades. A free Windows version TFTP server is available:   http://support.solarwinds.net/updates/New-customerFree.cfm.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 42 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011    INSTRUCTIONS FOR LOCAL TFTP UPGRADE:  1.  Unzip the file and put all of them under the root directory of the TFTP server.  2.  The PC running the TFTP server and the GXP21xx should be in the same LAN segment. 3.  Go to File -> Configure -> Security to change the TFTP server's default setting from "Receive Only" to "Transmit Only" for the firmware upgrade.  4.  Start the TFTP server, in the phone’s web configuration page 5.  Configure the Firmware Server Path with the IP address of the PC 6.  Update the change and reboot the unit   User can also choose to download the free HTTP server from http://httpd.apache.org/ or use Microsoft IIS web server.  NOTE: •  When GXP21xx phone boots up, it will send TFTP or HTTP request to download configuration file “cfg000b82xxxxxx”, where “000b82xxxxxx” is the MAC address of the GXP21xx phone. This file is for provisioning purpose. For normal TFTP or HTTP firmware upgrades, the following error messages in a TFTP or HTTP server log can be ignored: “TFTP Error from [IP ADRESS] requesting cfg000b82023dd4 : File does not exist.Configuration File Download”  CONFIGURATION FILE DOWNLOAD  The GXP21xx can be configured via Web Interface as well as via Configuration File (binary or XML) through TFTP or HTTP/HTTPS. The “Config Server Path” is the TFTP or HTTP server path for the configuration file. It needs to be set to a valid URL, either in FQDN or IP address format. The “Config Server Path” can be the same or different from the “Firmware Server Path”.  A configuration parameter is associated with each particular field in the web configuration page. A parameter consists of a Capital letter P and 2 to 4 digit numeric numbers, i.e., P2 is associated with “Admin Password” in the ADVANCED SETTINGS page. For a detailed parameter list, please refer to the corresponding configuration template of the firmware.   Once the GXP21xx boots up (or re-booted), it will request a configuration file named “cfgxxxxxxxxxxxx” followed by a request for configuration XML file named “cfgxxxxxxxxxxxx.xml”, where “xxxxxxxxxxxx” is the MAC address of the device, i.e., “cfg000b820102ab”. The configuration file name should be in lower cases.  For more details on XML provisioning, please refer to http://www.grandstream.com/support.    Managing Firmware and Configuration File Download  When “Automatic Upgrade” is set to “Yes”, a Service Provider can use P193 (Auto Check Interval, in minutes, default and minimum is 60 minutes) to have the devices periodically check for upgrades at pre-scheduled time intervals. By defining different intervals in P193 for different devices, a Server Provider can manage and reduce the Firmware or Provisioning Server load at any given time.
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 43 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  Restore Factory Default Setting WARNING:  Restoring the Factory Default Setting will delete all configuration information of the phone. Please backup or print all the settings before you restoring factory default settings. We are not responsible for restoring lost parameters and cannot connect your device to your VoIP service provider.   INSTRUCTIONS FOR RESTORATION:  Step 1: Press “OK” button to bring up the keypad configuration menu, select “Config”, press “OK” to enter submenu, select “Factory Reset” (Please refer to Table 5-1 of keypad flow chart)  Step 2: Enter the MAC address printed on the bottom of the sticker. Please use the following mapping:  0-9:    0-9 A:      22  (press the “2” key twice, “A” will show on the LCD) B:      222 C:     2222 D:     33  (press the “3” key twice, “D” will show on the LCD) E:     333 F:     3333  Example:  if the MAC address is 000b8200e395, it should be key in as “0002228200333395”.  NOTE:   •  If there are digits like “22” in the MAC, you need to type “2” then press “->” right arrow key to move the cursor or wait for 4 seconds to continue to key in another “2”.   Step 3:  Press the “OK” button to move the cursor to “OK”. Press “OK” button again to confirm. If the MAC address is correct, the phone will reboot. Otherwise, it will exit to previous keypad menu interface.     FCC  Warning   This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:  (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including  interference that may cause undesired operation.    Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's  authority to operate the equipment.    FCC 15.105 Class B (b) For a Class B digital device or peripheral, the instructions furnished the user shall include the following or similar statement, placed in a prominent location in the text of the manual: Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
 Grandstream Networks, Inc.  GXP21xx User Manual  Page 44 of 44                                                                Firmware version: 1.0.1.83                                 Last Updated:  08/2011  —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help.

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