I2021 Series ISDN Telesvcs User's Guide 6/12/00 Lucent Users Manual

User Manual: i2021 Series

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i2021 ISDN Telelset
Issue IV, 5-25-2000

i2021 Series
ISDN Teleset
User's Guide

i2021 ISDN Teleset
Mandatory Customer Information
Federal Communications Commission (FCC) Requirements
This equipment complies with Part 68 of the FCC Rules. When requesting service,
provide the following information to the telephone company.
PORT

FIC

SERVICE ORDER
CODE

144Kbps Subrate

02IS5

6.0Y

JACK

If your telephone equipment causes harm to the network, the telephone company
may discontinue your service temporarily. If possible, they will notify you in
advance. But if advance notice is not practical, you will be informed of your right to
file a complaint with the FCC.
Your telephone company may change its facilities, equipment, operations or
procedures that could affect the proper functioning of your equipment. If they do,
you will be notified in advance to give you an opportunity to maintain uninterrupted
telephone service.
If you experience trouble with this telephone equipment, please contact your
telephone equipment distributor for repairs. The telephone company may ask that
you disconnect this equipment from the network until the problem has been
corrected.

Trademark Acknowledgment
5ESS is a registered trademark of Lucent Technologies.
DMS-100 is a registered trademark of NORTEL, Inc.
EWSD and Siemens are registered trademarks of Siemens Information and
Communication Networks

i

i2021 ISDN Teleset
IMPORTANT SAFETY INSTRUCTIONS
When using your telephone equipment, basic safety precautions should be
followed to reduce the risk of fire, electric shock, and personal injury.

Read and follow all instructions.

Follow all warnings and instructions marked on the product.

Disconnect the telephone from the telephone line before cleaning. Do not
use aerosol or liquid cleaners. Use a damp cloth only.

Do not use this equipment near water, for example, a bathtub, pool, sink
or laundry tub.

Do not use this equipment in a wet basement.

If this equipment accidentally falls into water, do not retrieve it until you
have disconnected it from the telephone line. Disconnect it at the wall jack
only.

This product should not be placed near or over a radiator or heat register.

Do not place this product in such a way as to cause the cord to be a
tripping hazard.

To avoid the risk of electrical shock, never push objects of any kind
through slots or openings in the product.

Do not disassemble this product. Opening the product can expose
hazardous voltage, which may cause an electrical shock.

Unplug this equipment and refer to a qualified technician if:
1. The cord is damaged or frayed.
2. Liquid has been spilled on this equipment.
3. This equipment has been exposed to water or rain.
4. If this equipment does not operate properly.
5. If this equipment has been dropped or appears damaged.

Avoid using this equipment during an electrical storm.

Do not use this equipment to report a gas leak if it is in the vicinity of the
leak.

This product should not be placed on an unstable table, stand or cart.
The product may fall, causing serious damage to it.

Do not overload wall outlets and extension cords as this can result in risk
of fire and electrical shock.

This product should only be operated from the type of power source
indicated on the label. If you are not sure of the type of power supplied to
your home, consult your dealer or local power company.

ii

i2021 ISDN Teleset

TABLE OF CONTENTS
Introduction .................................................................................................. 1
ISDN i2021 S/T Telesets ......................................................................... 1
About This Manual ................................................................................... 1
Features ................................................................................................... 1
Voice Operation Features ........................................................................ 2
Changing the Language on Keycaps and Display ................................... 3
Touchtone Keypad ................................................................................... 3
Installation.................................................................................................... 5
Parts List .................................................................................................. 5
ISDN Interfaces ........................................................................................ 5
Line and Power Connections – i2021 Teleset ......................................... 6
PS1/PS2 Switch Settings ......................................................................... 7
Terminating Resistors .............................................................................. 7
Point-to-Point Circuits .............................................................................. 8
Passive-Bus or Multipoint ........................................................................ 8
Line Configuration .................................................................................... 9
Auto-SPID Procedures ........................................................................... 10
System Configurations ........................................................................... 10
Auto-Install ............................................................................................. 11
Manually Choosing the Switch ............................................................... 11
Manually Entering the SPID ................................................................... 11
Manual Switch Downloading .................................................................. 12
Setting Up The Teleset .............................................................................. 14
Liquid Crystal Display (LCD) .................................................................. 14
Softkeys ................................................................................................. 14
Setting the Backlighting Options ............................................................ 16
Setting the Contrast ............................................................................... 16
Adjusting the Display Viewing Angle ..................................................... 17
Operations ................................................................................................. 18
Voice Operation ..................................................................................... 18
Terms and Nomenclature ...................................................................... 18
Call Appearance LED’s .......................................................................... 18
Non-Programmable Hardkeys and Indicators........................................ 18
The Display Window and Menus ........................................................... 19
placing Calls ........................................................................................... 20
Answering Incoming Calls...................................................................... 20
Hold Key................................................................................................. 21
Features ..................................................................................................... 22

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i2021 ISDN Teleset

TABLE OF CONTENTS
Setting the Date and Time Clock ........................................................... 22
Setting the Alarm Time .......................................................................... 23
Ringing Patterns .................................................................................... 25
Speed Dial Key Assignment .................................................................. 26
Redial ..................................................................................................... 30
Directory................................................................................................. 30
Password Selection ............................................................................... 32
Call Records .......................................................................................... 34
Saving a CalLog Entry to the Directory ................................................. 35
Transfer, Conference and Drop Features .............................................. 35
Advanced Features ................................................................................... 40
Call Appearance .................................................................................... 40
Manually Assigning a Directory Number to a Key ................................. 42
DSS/BLF (Direct Station Select, Busy Lamp Field) ............................... 42
Programming a DSS/BLF (Direct Station Select / Busy Lamp Field)
Feature................................................................................................... 43
Key Mapping .......................................................................................... 43
Inspect ................................................................................................... 45
View ....................................................................................................... 46
Testing ................................................................................................... 46
Maintaining the Teleset ............................................................................. 47
Troublingshooting Problems .................................................................. 47
Glossary .................................................................................................... 49
Index .......................................................................................................... 51

TABLE OF FIGURES
FIG. 1:
FIG. 2:
FIG. 3:
FIG. 4:
FIG. 5:
FIG. 6:
FIG. 7:

TOUCHTONE KEYPAD .................................................................................. 4
LINE AND POWER JACKS ............................................................................. 6
NT1 LEADS ................................................................................................. 7
POWERING A TELESET (S/T) WITH AN EXTERNAL POWER SUPPLY .............. 7
TERMINATING RESISTOR RANGE ................................................................. 8
TERMINATING RESISTOR SETTINGS FOR FARTHEST TELESET ...................... 9
TERMINATING RESISTOR SETTINGS FOR EQUAL DISTANCE TELESETS ........ 9

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i2021 ISDN Telelset

INTRODUCTION
ISDN i2021 S/T TELESETS
Thank you for purchasing the i2021 voice only Integrated Services Digital
Network (ISDN) Teleset. This Teleset meets the highest standards of
quality to give you years of excellent service. The i2021 works with your
local service provider to give you advanced, easy-to-use features. It is
compliant with National ISDN 1 and 2 standards.

ABOUT THIS MANUAL
This manual contains the following information about your new ISDN
Teleset:
 Features
 Installation
 Setup
 Voice User Operations
 Troubleshooting
i2021 S/T Teleset
This Teleset connects to an ISDN Basic Rate S/T interface, which may
require an external NT1 (Network Terminator). Your local telephone
equipment provider may furnish this device.

FEATURES
The i2021 Teleset offers an extensive list of features. They include the
following:
 Cross-Compatibility
The Telesets work with several different switches: the Lucent
®
®
Technologies 5ESS (National ISDN), the Nortel DMS-100 (National
®
ISDN) and the Siemens EWSD (National ISDN).
 Programmable Features and Options
An extensive array of options/features may be provisioned via menus.
 Programmable Hardkeys
These keys are used for Call Appearances, access to Speed Dialing
lists, and Dial Access Codes. The i2021 has 16 programmable
hardkeys.
 Firmware Upgrades
Your Teleset can always have the latest software features. The i2021
Teleset uses flash memory to download the current firmware. This is
done through the S/T interface port, via a remote server.
 Tilting Display (Backlit)
Your Teleset has a Liquid Crystal Display (LCD) with 9 settings for the
optimum-viewing angle. It displays Caller ID information, CalLog
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i2021 ISDN Teleset








entries, and is used to set up and manage Teleset operation.
Clock and Alarm
The display includes a time-of-day clock, and a timer that shows how
long you are on a call. A separate timer is kept for each Call
Appearance. You can also program the clock to operate as an alarm
clock, with up to eight different alarm times.
Password Protection
A password can be used to safeguard your programmed options and
features.
Non-Volatile Memory
Any options you program into the Teleset are protected from
accidental loss by power failures. This allows you to move the Teleset
to another location without worry.
Backup Battery
An optional battery backup unit is available.

VOICE OPERATION FEATURES


















Feature Keys
Such features as Hold, Transfer, Drop, and Conference, are supported
on the Teleset.
Call Status Lamps
Each hardkey contains a two-state (red/green) lamp to show the status
of Call Appearance or Feature Keys.
Local Features
These keys include: MUTE, MENU, REDIAL, SPEAKER,
VOLUME (Down) / VOLUME (Up) .
Message Waiting Lamps
These indicators flash (red) to alert you to a message (held) at your
message center. Contact your service provider for this service.
Automatic Hold
During a call, you can answer an incoming call or initiate another call
by pressing a Call Appearance (CA) key. Your first call is
automatically placed on hold.
Speakerphone
A base-mounted speaker and microphone allow hands-free operation.
The speaker is automatically turned off when the far-end party
terminates the call.
Volume Control
This key controls the loudness of the handset, headset,
speakerphone, and the ringer intensity.
Ringer Controls
Up to ten different ringing patterns and five separate alarm patterns
may be chosen.
Call Record
Your Teleset stores the information from the last ten calls you dialed or
received.
2

i2021 ISDN Teleset






Call Timer
On each new call, the timer displays the elapsed time of the call.
Placing a new call resets the timer for the new call.
Headset Jack
Inserting the headset plug into this jack enables the headset, and
disables the receiver and speakerphone. The i2021 Teleset contains
an amplifier controlled by the volume key.
Network Features
Your Teleset can provide advanced network features. Such features
as Call Forwarding, Auto-Callback and Call Pickup, may be available
through your service provider.

CHANGING THE LANGUAGE ON KEYCAPS AND
DISPLAY
Certain keycaps are available in three languages. These user changeable
keycaps are shown below. The Teleset will also allow the user to choose a
display language.
English
MENU
MUTE
HOLD
REDIAL

French
MENU
SOUR
ATTENT
RECOMP

Spanish
MENU
MUTE
ESPERA
VOL.LL

Changing the Keycaps
Using a small screwdriver or similar flat blade (unsharpened), carefully pryup the existing keycap by the indentation on the side. Remove the keycap
and gently press the new cap down until it locks in place. You may now
change the language displayed.
Changing the Display Language
Press the following keys in order: MENU, MORE, MORE, Config (softkey),
and LANG (softkey). The Teleset will then prompt you to choose the
desired language.

TOUCHTONE KEYPAD
A standard telephone keypad is used to enter alpha-numeric characters as
well as the “Feature” (Star * and Pound #) keys. These keys are used to
dial telephone numbers, and to enter names and numbers into the
directory. Certain other features or options may include the use of the two
feature keys.

3

i2021 ISDN Teleset

Fig. 1: Touchtone Keypad

4

i2021 ISDN Teleset

INSTALLATION
Before installing your phone, review the Safety Instructions located at the
front of this manual. Make sure you have the correct model Teleset and
associated parts for your applications. Choose a flat work surface with
good lighting and easy access to cords and jacks. Avoid placing the
Teleset where it is exposed to sunlight or heat sources.

PARTS LIST
Check the box for the following:
Teleset
Handset and Handset Cord
Mounting Cord (8-pin, round)
Designation Card and Faceplate
Wall-Mount /Desk Stand Base
Handset Holder
Headset Holder
As you unpack the box, inspect each part carefully for damage. Report
any damage to your dealer or shipping company. Keep the box and
packing material should a return be necessary.

ISDN INTERFACES
A little background information sometimes helps. Your ISDN service
comes to you over ordinary telephone line wiring. That makes it less
expensive and simple to install.
An interface is a point where the 2-wire connection (U interface) from the
service provider, changes to a 4-wire (S/T interface) connection to your
Teleset. Both interfaces connect to the NT1 where the electrical signal is
transformed for Teleset use. Thus, the interface designations U and S/T,
are really references to the electrical characteristics of the ISDN signal and
not actual interfaces at all. It sounds confusing, but think of the NT1 as a
common, physical reference point where the signal changes format. Since
the signal comes into the NT1 2-wire, and leaves 4-wire, it is called an
interface. See Fig. 1.
The S/T interface and power connection cable is connected to the “Line-In”
jack located on the bottom of the Teleset. The i2021 S Teleset must be
connected through a network interface device (NT1). This device presents
the 2-wire “U” interface to the line, and to the 4-wire S/T interface to the
Teleset. The Teleset is usually powered from the NT1 or separate
transformer.

5

i2021 ISDN Teleset

Fig. 2: Line and Power Jacks

LINE AND POWER CONNECTIONS – i2021 TELESET
The i2021 Teleset must be connected to the line through an NT1 device.
This device presents the 2-wire U interface to the line, and the 4-wire S/T
interface to the Teleset. The Teleset is powered over the phone line. This
method conforms to a standard using one of three different powering
methods: PS1, PS2, or PS3. Powering method PS2 is preferred. Check
with your equipment provider or system administrator for guidance in
setting the PS1/PS2 switch. Your equipment provider should also be
asked about using or disabling the Teleset terminating resistors (TR).
Switch Settings:
Power Switch
The PS1/PS2 power switch is located on the bottom of the i2021.





TR Switch
When the i2021 Teleset is connected to the NT1 it acts as Terminal
Equipment (TE). Terminal Equipment is any (ISDN) device that
terminates directly on the ISDN line without an adaptor.

If your Teleset is the last, or only, piece of TE on the ISDN line, set the TR
to ON, otherwise it is set to OFF. This is determined by the local
equipment provider’s policy. It is suggested that you check with the ISDN
provider or your system administrator. Most companies allow up to eight
TE units in the loop.

6

i2021 ISDN Teleset

Fig. 3: NT1 Leads

PS1/PS2 SWITCH SETTINGS





If power is supplied on pins 7&8, set the PS1/PS2 switch to PS2.
If power is supplied on pins 3&6, 4&5 only, set the PS1/PS2 switch to
PS1.
If power is supplied on pins 3&6,4&5,7&8, set PS1/PS2switch to PS2.
If your NT1 does not supply power, you must use an external 48-volt
DC power supply. Contact your service provider or system
administrator if an external power supply is required. Connect as
follows (Figure 3) and set the PS1/PS2 switch to PS2.

Fig. 4: Powering a Teleset (S/T) with an External Power Supply

TERMINATING RESISTORS
The i2021Teleset has built-in Terminating Resistors. The Terminating
Resistor switches are located on the bottom of the phone. When the
switches are in the On position, the Terminating Resistors are installed.
The value of the resistors is 100 Ohms.

7

i2021 ISDN Teleset

POINT-TO-POINT CIRCUITS
A point-to-point application typically has the Terminating Resistors “On” at
both ends of the interface.

Fig. 5: Terminating Resistor Range

PASSIVE-BUS OR MULTIPOINT
These may be new terms to you, so we will define them so you can better
understand their meaning. Passive Bus means that you can connect
several devices to the same Basic Rate Interface (ISDN line). Improperly
set Terminating Resistors account for many of the problems with ISDN
service. The “short version” of this explanation is that the terminating
resistance at both ends of a circuit should be identical. This is called
impedance matching.
Your choices of terminating resistance are two: none or 100 Ohms. The
idea is to terminate both ends of the bus.
The best advice is to follow the instructions given by the NT1 manufacturer
and those of your terminating devices.
In the following configuration, the Terminating Resistors are “On” at both
ends of the interface. The resistors are on at the NT1 and “On” at the
farthest i2021 from the NT1.

8

i2021 ISDN Teleset

Fig. 6: Terminating Resistor Settings for Farthest Teleset
In the following application, the NT1 is equal in distance to both
i2021 phones. The Terminating Resistors are set to “On” at one of
the phones and at the NT1.

Fig. 7: Terminating Resistor Settings for Equal Distance Telesets

LINE CONFIGURATION
To ensure the proper operation of your Teleset, several operating
parameters must be met. This information can be provided by your
system administrator or service provider.
 Service Profile IDentifier (SPID)
A service profile for your Teleset that is recognized by the switch.
Check with your service provider or system administrator for the
9

i2021 ISDN Teleset






correct information. The default setting is Auto-Switch detect and AutoSPID.
Directory Number
The telephone numbers for your line.
Call Appearance keys
These are configured at the switch and at your phone. You may have
more than one Call Appearance of a Directory Number. Check with
the system administrator or service provider for information and
multiple Directory Numbers. With National 2 ISDN, many of the
required settings can be automatically downloaded from the switch –
see your system administrator or service provider for details.
Switch Type
The type of switch used by the service provider. The i2021 will
®
operate with the Lucent Technologies 5ESS (National ISDN), Nortel
®
®
DMS-100 and the Siemens EWSD-NI.

AUTO-Install
The i2021 is equipped with an Auto-Install feature. See the Quick Start
Guide for details on this feature. The purpose of Auto-INSTALL is to
ensure a complete and painless installation. The i2021 will step through
each of its programming choices and give you the opportunity to make a
selection.
AUTO-Switch
With Auto-Switch detection, the i2021 determines the type of switch to
which you are connected. Should you decide to manually program the
switch type, Auto-Switch detect will tell you if a different type of switch is
found. You will then be given the opportunity to correct the switch type.
AUTO-SPID
Auto-SPID is a National 2 ISDN feature. Not all switch types and not all
service providers support the Auto-SPID feature. If Auto-SPID is
supported, follow the procedure shown below.

AUTO-SPID PROCEDURES
When the countdown timer stops, or is aborted, the Teleset automatically
sends the Auto-SPID code to the switch. The switch then downloads all of
the SPID’s that are supported to the phone.
NOTE: If the SPID is not accepted for any reason - including the
SPID being used at another location - the phone displays:
“Invalid SPID,” and allows correction of the SPID.

SYSTEM CONFIGURATIONS
The following check sheet lists the items that are important to ensure that
10

i2021 ISDN Teleset
the Teleset and switch are similarly configured – necessary for correct
operation of the phone:
 Switch Type
 SPID
 Call Appearance activated
 Directory Number activated
 Customer features activated
 “Class” services: Caller ID, Message Waiting, etc.
 Conference Drop and Transfer features enabled.

AUTO-INSTALL
The i2021 Teleset is equipped with an Auto-Install feature that can step
the user through the installation and configuration of the Teleset.
Auto-Install will only run the first time the Teleset is installed. First, the
phone’s features must be set to “default”. Auto-Install starts by instructing
the user to adjust the display’s contrast, clock, ring patterns, etc. AutoInstall prompts the user during initialization as required.
NOTE: To default the i2021 press MENU and enter 91 from the
dial keypad. Press the “YES” softkey to complete the
default.
WARNING: DEFAULTING THE i2021 WILL ERASE ALL OF
THE MEMORY.
At each step of this process, Auto-Install gives the user the opportunity to
bypass that step. For example, if the prompts says: “Set the Clock,” you
may press the “no” softkey to bypass that step.
Auto-Install may be aborted by pressing the MENU key.

MANUALLY CHOOSING THE SWITCH
NOTE: Your Teleset has a factory default setting of “AUTO” which
adjusts for the switch type. An incorrect switch type
results in a warning message from the Teleset. The
correct switch, as detected by the Teleset, is displayed as
a prompt to change your switch selection.

MANUALLY ENTERING THE SPID
1. Press MENU, MORE, MORE, Config (See Softkeys), MORE, MORE,
SPID.
2. Press Change if you want to edit the SPID. Pressing Change will not
erase the displayed SPID until the new SPID is entered from the
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i2021 ISDN Teleset
keypad. Press Clear if you want to erase the existing SPID.

3. Up to twenty digits can be entered as the SPID. After entering the
digits, press Save to enter into non-volatile memory. If an error is
made use the Bkspc (backspace) key to edit. Enter the corrected
digits and press Save. Press MENU to return to the idle screen.

When the SPID entry is complete, the Teleset must be programmed.
The i2021Teleset can download the switch parameters, and/or can be
manually programmed. In Auto-SPID mode, the Teleset will download
automatically.

MANUAL SWITCH DOWNLOADING
Switch parameters may be downloaded from the switch to the Teleset over
the ISDN line. A download can be requested up to three times in a fiveminute period. To download proceed as follows:
1. Press MENU, MORE, MORE, Config, MORE, MORE, and
ReqParam/RunSPM (depending on the switch) in order. A message
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i2021 ISDN Teleset
indicates a successful or failed download. If the switch is in the AutoSPID/Auto-Switch mode, the download is automatic upon initialization.
If successful, the remainder of the setup parameters need not be
entered. These setup characteristics include conference, drop,
transfer and Call Appearances. You must enter these parameters
manually if the download fails. Press MENU to return to the idle
(power-up) screen.
®

NOTE: If the Teleset detects a DMS-100 or the switch is
®
programmed as a DMS-100 , the ReqParam softkey will
be displayed as RunSPM.
2. Press ReqParam. A message tells you if the download was or was not
successful. If the Teleset has not linked with the switch, the display
will show “Layer 3 Not Initialized Yet.” If this happens, press MENU to
exit. The Teleset will request a download after the communication
with the switch has been completed. If the phone has successfully
downloaded, you can omit manually programming the remaining
parameters. If the download was not successful, you must continue
with the listed parameters.
When you are finished, press MENU to return to the idle screen.

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i2021 ISDN Teleset

SETTING UP THE TELESET
Setting up the i2021 Teleset is accomplished through menus appearing on
the display. Some of the changeable options/features include:
 Switch types
 Service Profile IDentifiers (SPID)
 Line configuring
 Conference Drop and Transfer features
 Call Appearance keys
 Speed Dialing
 Ringing Patterns and Idle Line Preferences
 Clock functions
 Handset and Headset options
 Passwords
Some of these options and features were discussed earlier in the manual.
Others will be discussed later in this and the following chapter.

LIQUID CRYSTAL DISPLAY (LCD)
The i2021 Teleset incorporates a two-line, 24 character, adjustable backlit
display. There are three settings for the backlight feature: off, on, and
dynamic.
OFF – When the backlight feature is set to off, no backlighting is present.
ON –When the backlight feature is on, the backlighting is continuous.
DYNAMIC – When the dynamic backlighting feature is enabled, the
display is backlit whenever the handset is off-hook or the Teleset is
ringing. In the dynamic setting, the display is backlit for a period of 30
seconds after the ringing ceases or the handset goes on-hook.

SOFTKEYS
Directly below the display are four softkeys, vertically-oriented to the
display. The location of these keys corresponds to menu choices that
appear directly above them in the LCD window. For example, pressing the
softkey below the “clock” menu reveals the options for setting the time of
day and date. They are called softkeys because their function changes
according to the menu. In one menu a key may set the time, while in
another menu the same key is used to choose a feature. This will become
clearer as you begin using the softkeys. See the following example.
Example:
Press the softkey under Directory - shown below by highlighting (bold
type) the word “DIR” and highlighting the softkey below that menu item.

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i2021 ISDN Teleset

Pressing the Directory softkey brings up the second menu with additional
choices. In our example we chose Search next - shown in bold type. The
selected menu items are shown in bold type for emphasis. The softkey
under Search is highlighted to indicate the chosen softkey.

Choosing Search returns the next screen.

To return to the main menu at any time, press the MENU hardkey.

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i2021 ISDN Teleset

SETTING THE BACKLIGHTING OPTIONS
To set these options, first press the MENU key and then the MORE key.
The display appears as shown below.

Press the BkLight “softkey”. The display will show the current setting on
the top line. To change the option, press the appropriate softkey. Press
MENU to exit.

NOTE: An explanation of the options provided by the MORE key
is found in the Basic Operation section found in Chapter 2.

SETTING THE CONTRAST
The display contrast is adjusted by pressing MENU, then MORE. The
following display appears.

16

i2021 ISDN Teleset

Press the Cntrst softkey.

Adjust the contrast by pressing the Less and More softkeys. If the display
characters appear faded, pressing the More softkey will darken the
characters by increasing the contrast. Similarly, pressing the Less softkey
decreases contrast (lightens the characters) for comfortable viewing and
better clarity. Exit by pressing the MENU key.

ADJUSTING THE DISPLAY VIEWING ANGLE
The display module on the i2021 Teleset tilts for ease of viewing. This is a
handy feature when reflections from room lighting or instrument placement
make the display less readable. Select any of nine angle settings by lifting
the display from the rear with your finger. Return the display to a lower
position by pressing down on the top of the display case, not the display
window.

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i2021 ISDN Teleset

OPERATIONS
VOICE OPERATION
Most of the operations described to this point are switch related or
controlled. Voice Operation consists of features/options controlled by the
Teleset.

TERMS AND NOMENCLATURE
Of all the terms used in basic telephony, none is more widely used than
“On-Hook and Off-Hook.” They refer to placing or removing the handset,
or receiver, in the cradle (usually on the top or in the front) of the
instrument. The button protruding up from the cradle is the “On and Off”
switch, or switch hook, of the phone. Pressing the Speaker key and
requesting dial tone is also considered going “Off-Hook”. This background
is helpful in understanding the instructions that follow.

CALL APPEARANCE LED’S
The various states of the Call Appearance indicators (hardkeys)
are described in the following table.
LED State
Off
Red - Flashing
Green - Flashing
Green - Steady

Meaning
Idle State
Incoming Call
Call on Hold
Call in Progress

NON-PROGRAMMABLE HARDKEYS AND INDICATORS
Non-programmable Hardkeys and Indicators are found to the right of the
touchtone keypad. Some of the keys in this group perform important
calling and answering functions.
 MSG
If your line service includes the Message Waiting feature, the MSG1
(and MSG2, when available) indicator will flash (red) when someone
has left a call at your message center.
 MENU
The MENU key provides additional menu items and is used to exit
from the menus. A steady light (red) lights the key when active.
 MORE
The MORE key lights to indicate that there are choices available for
current menus. If the MORE key is lit continuously, it indicates there
are additional menu items available by pressing the key. When the
MORE key flashes, you can press the key to return to the previous
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i2021 ISDN Teleset










menu.
MUTE
The MUTE button toggles the microphone - on and off - for the
handset, headset, and speakerphone. A steady light (red) lights the
key when active.
REDIAL
This key is handy for calling frequently busy numbers. Press this key
to redial the last (manually dialed, or Speed Dialed) number.
VOLUME / RINGER
Press the right side of this key to incrementally raise the volume/ringer
intensity. You incrementally lower the volume, or ringer intensity, by
pressing on the left side of the volume key. A bar graph displays as
the level increases or decreases. This setting (volume or ringer) is
saved until changed again.

HOLD
The HOLD key lets you answer or place a second call without losing
the original connection. This is not the key used when transferring or
making conference calls – other keys are used.
SPEAKER
The SPEAKER hardkey turns the speakerphone, or the headset if used,
On and Off. A steady light (red) lights the key when active.

(Speaker Hardkey)

THE DISPLAY WINDOW AND MENUS
The display window contains information used to configure the Teleset’s
options and features. The liquid crystal display (LCD) also shows the
Caller ID information, call timer, current time /date and the menus for
phone setup. Throughout this manual you will be prompted to make
decisions and choose features that are displayed in the LCD window.
The menu system allows you to program all of the features/options of your
Teleset easily and accurately. The “On-Hook” idle screen is shown below.
The time/date entry flashes until it is set. The menus for the CallLog and
Directory are accessed by pressing the softkey directly below the word.
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i2021 ISDN Teleset

PLACING CALLS
The two methods of placing calls are On-Hook and Off-Hook dialing. This
may differ somewhat from what you consider to be traditional usage, but
ISDN is not yet considered, by some, a traditional service.
Dialing Off-Hook
1. Lift the handset (go Off-Hook), listen for dial tone and note the steady,
green Call Appearance key.
2. Using the touchtone keypad, dial the number and observe the call
timing feature. When the called party answers the call timer begins
operation.
3. Return the handset to the switch hook cradle (go On-Hook) to
disconnect.
Dialing On-Hook
1. The handset remains On-Hook while you dial the number. Note that
the dialed digits appear on the screen as they are dialed.
2. Press Cancel to abort the dialing process, or use Bkspc to correct the
dialed number – one digit at a time.
3. When you are sure that your dialed number is correct, go Off-Hook.
The number is dialed and the call timer begins as the call is answered.
4. When the call is over, go On-Hook.

ANSWERING INCOMING CALLS
Line Preference
There are four options for answering incoming calls: Ringing Line
Preference, Idle Line Preference, Key 1 Preference, and No
Preference. (see Advanced Features). In all cases the Call Appearance
hardkey flashes (red) and the Caller ID data, if sent by the switch, is
displayed on the screen.
1. Idle Line Preference, the user goes Off-Hook and presses the ringing
Call Appearance key to answer the call. Idle Line Preference seeks
the first available idle line and returns dial tone.
2. Ringing Line Preference, the user goes Off-Hook to answer the call.
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i2021 ISDN Teleset
Pressing the ringing key is not required. In the case of multiple ringing
calls the oldest ringing call is answered. This is the most common
operation.
3. Key 1 Preference, the Teleset will always go off-hook on Key 1
regardless if the Call Appearance is ringing or idle.
4. No Preference, the user must select a Call Appearance key every
time it is ringing or dial tone is requested. The phone will not
automatically select a Call Appearance.
To set the Line Preference press MENU, MORE, MORE, LnPrf.

NOTE: The complete top line of the display (Calling Line ID) can
be viewed on any “Off-Hook” Call Appearance by pressing
the Call Appearance key. Pressing an Off-Hook Call
Appearance key will cause the display to scroll.

HOLD KEY
During a call, you can answer an incoming call or initiate another call by
pressing the Hold key. The original call is held until you return to it.
Automatic Hold is a standard feature of National ISDN. This operates by
pressing another Call Appearance key while on a call. Your call is
automatically placed on hold and a green LED flashes to indicate the held
conversation.
1. During a call, press Hold or a new Call Appearance key.
2. If you selected Hold, press a Call Appearance key and complete the
call.
3. Return to the original call by pressing the flashing hardkey.
4. Go On-Hook after the call is complete.

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i2021 ISDN Teleset

FEATURES
SETTING THE DATE AND TIME CLOCK
Setting the time and date are important to the accuracy of your Teleset.
This is important because the alarm feature is dependent on setting the
correct time and date. The graphic flowchart may be useful in setting the
time. Set the time as follows:
1. Press the MENU hardkey.

2. Pressing Clock returns the next screen. The digit set is two
characters long (hour-minute-second). Use the touchtone keypad to
enter the digits, using a zero for numbers below 10 as in the example.
Then press Save.

3. The next screen is used to edit the clock functions.

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i2021 ISDN Teleset
Example:

4. Enter the clock digits (see example) and press Save. Pressing Save
returns the following screen.

SETTING THE ALARM TIME
Five different alarm clock ring patterns can be set. Setting the alarm is
done as shown below. You may also wish to look at the flowchart for a
graphic representation of the programming sequence. You can set an
alarm to sound at a specific time, or at the same time every day. A
maximum of eight alarms may be set.

1. Press MENU, Alarm

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i2021 ISDN Teleset

2. Press Change.

3. Enter the date you want the alarm to sound, or press Daily, then press
Save.

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i2021 ISDN Teleset
4. Enter the time (hour, minute), then press Save. If you wish to enter
additional alarms press Next and repeat the above.

RINGING PATTERNS
Your Teleset has up to ten different ringing patterns to signal incoming
calls. Set the pattern as shown below.
1. Press MENU, then MORE. When the screen below is returned, press
Ring.

2. On this screen you choose the ringing pattern (RingPattern).

This selection returns a screen prompting you to select a ringing pattern
(0-9). As an example, we press the digit 3 on the keypad. We confirm 3
on the following screen and press Accept to enter your choice.

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i2021 ISDN Teleset

NOTE: Before accepting, the ring volume can be adjusted by
using the volume key and saved by pressing SaVol.
Press MENU to return to the startup screen. The SaVol key sets the
default level of the ringing pattern. The Ring Pattern level returns to this
volume setting if the Teleset power is reset. The Ringing Pattern volume
may be adjusted at any time by pressing the volume keys while the
Teleset is ringing. The Teleset will remember the volume setting until
power is reset.

SPEED DIAL KEY ASSIGNMENT
You can assign Speed Dial numbers to individual hardkeys. Hardkeys
may only be assigned to a single function/feature. If a hardkey is already
assigned, it cannot also be used for a Speed Dial key. This activity should
be coordinated with your system administrator or service provider.
1. Press MENU to bring up the menu shown next. When it appears
press the SpDial key.

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i2021 ISDN Teleset

2. If a hardkey lights, it means that key is already assigned a Speed Dial
number. Press the hardkey you wish to program as a Speed Dial key.
Each Speed Dial key will store 32 digits. The display will only show 20
digits of the number. The complete number can be viewed by using
the volume control key.

NOTE: If you select an unlit key that is not available, a Call
Appearance for example, the display will show “”. After a few seconds the phone will select
the first available key automatically. If this key is
satisfactory, proceed with the programming. If this key is
not satisfactory, press the MORE key to abort the
selection. You will then be given the opportunity to select
another key.
If a number is entered that exceeds the 20 digits displayed, the display
scrolls to the left and show the last 20 digits entered. The first of the
digits will be scrolled off of the display.

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i2021 ISDN Teleset
For example, if the number 9,1010xxx,011,88x,0,1234567890 is
entered as a speed dial the number would be shown as:

In this display:
“No”
“<”
“,”

Means the number being entered
Means there is hidden digits to the left of the
number
Is a pause entered in the dialing string

The first few digits displayed are 011,88. This means that the
9,1010xxx, have scrolled off of the screen. The VOL key can be used
to view the complete number. Pressing the LEFT side of the VOL key
will cause the display to shift to the FRONT or left most digit of the
telephone number. Pressing the RIGHT side of the VOL key will
cause the display to shift to the END or the right most digit of the
telephone number.
The character < will change to > depending on where the hidden digits
are located.
< = Digits are hidden at the front of the number
> = Digits are hidden at the end of the number
3. After entering the number press Save.
Editing a Speed Dial Number
To edit an existing Speed Dial number, press MENU, SpDial, then select a
key to edit. Use the Bkspc key to edit the number.

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i2021 ISDN Teleset

If the telephone number to be edited is longer than 20 digits there will be
arrows to allow you to view the entire number before editing.

After the entire number is viewed, press the edit key and edit the number
as above.
NOTE: If you dial “9” for a Centrex or PBX outside line, or a “1” to
access long distance, include that digit. Pauses, if
needed, are entered between digits by the Pause key.
They are shown as commas in the display (see example
above).
To originate a call using the Speed Dial key, press the button that has
been programmed with the number to be dialed. The Teleset will
automatically select a line and dial the number. An alternate operation is
to go off-hook on the handset and then press the Speed Dial key.

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i2021 ISDN Teleset

NOTE: Speed Dial keys can be programmed to send touchtones
after a call has been connected. This is useful for
programming voice mail passwords or pager numbers.

REDIAL
Press this key to automatically dial the last manually dialed, or Speed
Dialed number. This is especially handy when trying to connect to a
frequently busy number.
1. Go Off-Hook.
2. When dial tone is received, press the REDIAL key. Pressing this key
without going Off-Hook enables the speakerphone. The last manually
dialed number is dialed for you.
3. Go On-Hook when the call is completed.

DIRECTORY
The following characteristics apply to entries placed in the Directory:
 A name may be up to 16 characters in length.
 A Directory Number (DN) can be 18 digits long.
 The directory capacity is 100 entries - stored in alphabetical order.
 Search hint: If you forget the name you are looking for, press
“Find/Next” and you can scroll through the entries.
Directory Changes
When Directory (DIR) is pressed, the following is displayed.

Press Search to display the following screen.
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i2021 ISDN Teleset

If the directory is empty, the next screen appears.

At this point, the user may either press Next or Prev to scroll through the
entries or enter a name from the keypad. When the keypad is pressed,
the display will change as shown below.

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i2021 ISDN Teleset
To enter the name, press the same keys that are used to dial numbers on
the touchtone keypad.

For example: the name ED is entered by pressing the letters E and D
which are found, along with F, on the numeric key (3)on the keypad. Press
the key once and D is entered. Press it twice for E, three times for F and a
fourth time for the number 3 . After entering E, press the softkeyunder the
right hand arrow. This indexes the cursor one space to the right of E to
accept the next digit; in this case D.
Use the same method to enter subsequent letters – then press Find. The
directory will be empty until you add names to it. To return to the previous
screen where Directory was chosen, press the flashing MORE key. The
arrow key will move the cursor two spaces to the right and then “wrap.”
The Del softkey deletes the character over the cursor. Find will search for
the entry. If no matches are found, the display shown will be as shown
below.

PASSWORD SELECTION
A password (numeric) can safeguard your directory entries and
programming. Forgetting your password means resetting the Teleset to
the manufacturer’s initial settings. You will lose all of your call records,
directory entries and programmed features/functions. If you are still
interested in a password, read on. But first, choose a password that you
won’t forget. Don’t write it down in an obvious place and NEVER share it!
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i2021 ISDN Teleset
The flowchart can show you a graphic view of programming.
There are three levels of password protection:
1. LEVEL 1 – No password protection (default). All menus are
available to anyone - without a password.
2. LEVEL 2 – User information, such as directory and call logs, and
user settings (clock and alarm) are available without a password.
Access to configuration options require a password before access
is allowed.
3. LEVEL 3 – The third (highest) level of protection gives total menu
protection.
Setting Protection Levels
1. LEVEL 1 – has no password protection
2. LEVEL 2 – password protection is set by pressing the following keys:
MENU, MORE, MORE, and Pswrd (softkey). The display is shown
below.

3. Press Set.
4. Enter your six-digit password number using the keypad.

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i2021 ISDN Teleset
5. This number is your password. Write it down. You are prompted to
confirm the password.

6. If you wish to exit, press the MENU key now.
7. To begin Level 3 protection, press the LockAll softkey. Level 3
protects the Teleset’s entire menu system.

8. Press LockAll.
9. Press MENU to exit.

CALL RECORDS
Your Teleset stores call activity records in electronic memory. The softkey
CalLog will change to NewLog upon receipt of an unanswered incoming
call. To access the call records, press the CalLog or NewLog softkey on
the startup screen. Among the calls stored are:
 Incoming calls.
 Outgoing calls.
 Unanswered calls.
Forty call records are saved in the Unanswered log, and thirty call records
are saved in the Answered and Outgoing logs.
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i2021 ISDN Teleset
To access the call records observe the following directions. From the
startup screen press the CalLog, or NewLog softkey.

SAVING A CALLOG ENTRY TO THE DIRECTORY
1.
2.
3.
4.
5.
6.

Press the CalLog or NewLog softkey.
Press the Unans, Answer, or Outgoing softkey.
Locate the record you wish to save in the Directory.
Press the Edit softkey.
Edit the number as required.
Press Save, see the display below.

When the number is transferred to the Directory, you have an opportunity
to edit the name.
 Use the ∗ key to enter an asterisk or a hyphen.
 Use the # key to enter a pound sign or apostrophe.
 Use the DN softkey to toggle between the Name and the telephone
number.

TRANSFER, CONFERENCE AND DROP FEATURES
These very useful features are available on your Teleset. You may assign
them manually, but they are auto-configured as shown below.
 National ISDN1 requires you to program the features to individual key
appearances. Your service provider can advise you on which keys to
use, as the switch and Teleset assignments must agree. Once
assignments are made, the features appear as menu items above the
softkeys.
 With National ISDN2 service, the switch auto-configures both the
hardkeys and softkeys. The single exception is when the switch
download fails. In this case you must program the keys manually.

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i2021 ISDN Teleset

The Conference key can give you access to 3-way and/or 6-way
conferencing, depending upon which features are administered by your
service provider.
Transferring Incoming Calls
1. Answer the incoming call.
2. Press the Conf/TR, or the Transfer key, which ever key applies to
your service.
3. Place an outgoing call. When you hear ringing – press Transfer.
Assigning the Conference/Transfer Features Manually
The following sections describe how you assign these features.
1. Press MENU, MORE, MORE, Config, SetKey, SetFA. The display
shows as follows:

2. Press FA to scroll the features on the display.
3. The following features: PkUp (Call Pickup), FwdOn (Call Forwarding),
RingAgn (Ring Again or Auto Callback), Privacy (Exclusion), Confr
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i2021 ISDN Teleset
(Conference), Transfer, Drop, and MsgWait (Message Waiting 1)
®
are enabled as you scroll though them. If the switch is set for EWSD
the Transfer key may not be present.
4. To change or set the Conf key, scroll to the conference key, press
Change and enter the feature number using the touchtone keypad.

5. Press Save. Repeat this procedure for Transfer and Drop and other
features.
3–Way Conferencing

®

®

NOTE: On the Nortel DMS-100 and Siemens EWSD switches,
the Conf key is displayed as Conf/Tr. On the Lucent
®
Technologies 5ESS switch it is displayed as Conf and
Trans keys.

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i2021 ISDN Teleset
Conferencing Two Outgoing Calls
1. Place the first call.
2. Press the Conf or the Conf/Tr softkey, the phone automatically
provides dial tone from another Call Appearance (see Advanced
Features).
This display is shown after the second call is ringing.

3. Dial the number of the second party.
4. Press the Join key to complete the conference.
NOTE: You may press the Join key after the second party
answers or while it is ringing.
The Conf key will always change to AdNext. If you only subscribe to 3Way Conferencing, you cannot add any more to the conference.
th

NOTE: When you attempt to join a 4 party, you will receive a
“Service Option Violated” message.
Conferencing an Incoming Call to an Outgoing Call
1. Answer the incoming call.
2. Press Conf and proceed as explained above.
Conferencing an Outgoing Call to an Incoming Call
1. Place the outgoing call on Hold by using the Hold key.
2. The outgoing Call Appearance will flash green.
3. Answer the incoming call.
4. Press the Conf (conference) softkey and the phone adds dial tone
from another Call Appearance. Ignore the dial tone!
5. Press the first (outgoing) Call Appearance and the dial tone stops.
6. Press the Join key and the conference is completed.
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i2021 ISDN Teleset
Conferencing Two Incoming Calls
1. Place the first incoming call on Hold – the first Call Appearance
flashes green.
2. Answer the second incoming call.
3. Press the Conf softkey. As above, ignore the dial tone you hear from
another Call Appearance.
4. Press the first Call Appearance, then press Join - the conference
completed.

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i2021 ISDN Teleset

ADVANCED FEATURES
CALL APPEARANCE
PrimCA (Primary Call Appearance)
Primary Call Appearances are Call Appearance locations you consider to
be your own. Do not confuse PrimCA locations with Primary Directory
Numbers (PDN) which are used by your service provider to identify a
particular phone. Some other attributes of PrimCA:
 Executive/secretarial applications.
 Conjunction with RLP (Ringing Line Preference).
 User line identification.
The Primary Line feature works in conjunction with Ringing Line
Preference. Ringing Line Preference allows the Teleset to automatically
go off-hook on the oldest ringing Call Appearance when the handset is
lifted. This may be a problem if the Teleset is sharing telephone numbers
with another phone, such as in a manager/assistant application. In this
arrangement, the secretary receives an incoming call and the phone starts
to ring. A fraction of a second later, the manager receives an incoming
call. If the manager and secretary both have each other’s telephone
number appearing on their phone, the oldest call will be answered first.
This is no problem if the secretary answers first. But if the manager
answers first, the manager will get the secretary’s call.
This problem is easily avoided if the manager and the secretary set their
respective Call Appearances as Primary.
NOTE: PrimCA gives the phone Ringing Line Preference only on
the Primary keys.
To set Primary Call Appearances:
1. Press MENU, MORE, MORE, Config, MORE, PrimCA. The Teleset
will display the following message and a number of Call Appearances
will light.

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i2021 ISDN Teleset

2. The Teleset defaults to all Call Appearances are Primary. Therefore,
all of the Call Appearances will light green.
3. One at a time, select the Call Appearances that are not Primary to
your Teleset. The Teleset will prompt you to press the key twice to
confirm your selection.
4. If you encounter a red Call Appearance key, the Teleset will display
the message, “Invalid-Not a General CA”. This means the Call
Appearance has previously been programmed as a Conference Call
Appearance, a Priority Call Appearance, or a Terminate Only Call
Appearance. If this is the case, you must first go to the Priority Call
Appearance, or a Terminate Only Call Appearance screen and change
the key back to a General Call Appearance.
CONFCA (Conference Call Appearance)
To perform a conference or transfer a call, you need a second Call
Appearance. Your Teleset automatically selects the next available Call
Appearance when the Conf/TR or Confr key is pressed.
A word of caution is appropriate here. The next available Call Appearance
may be someone else’s (Shared) Primary Call Appearance. To avoid this
problem, press MENU, MORE, MORE, Config, MORE, ConfCA in order.
Select the Call Appearance to be used for conference – it will light green.
NOTE: Only Non-PrimCA keys can be programmed as a ConfCA.
You must first change a PrimCA key to a General CA key.
It is also recommended that the service provider option this Call
Appearance for outgoing calls only. Only one Call Appearance can be
designated as ConfCA.
PriortCA (Priority Call Appearance)
Priority Call Appearance is a feature offered by some switches. Priority
Call Appearances are not widely available today. To set a Priority Call
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i2021 ISDN Teleset
Appearance, press MENU, MORE, MORE, Config, MORE, PriortCA in
order. Select the Call Appearance to be used for Priority – it will light
green.
NOTE: Only Non-PrimCA keys can be programmed as a
PriortCA. You must first change a PrimCA key to a
General CA key.
TermOnlyCA (Terminate Only Call Appearance)
Terminate Only Call Appearance is a feature offered by some switches.
Terminate Only Call Appearances are not widely available today. To set a
Terminate Only Call Appearance, press MENU, MORE, MORE, Config,
MORE, TermOnlyCA in order. Select the Call Appearance to be used for
Terminate Only – it will light green.
NOTE: Only Non-PrimCA keys can be programmed as a
Terminate Only CA. You must first change a PrimCA key
to a General CA key.

MANUALLY ASSIGNING A DIRECTORY NUMBER TO A
KEY
Take a look at the layout of the Line and Call Appearance keys. These
(16) keys are located on the far-right hand side of the phone. The upperleft-hand key is the default or primary key. This is the key that is selected
when you lift the handset or press the SPKR (speakerphone) hardkey.
It is important to check with your system administrator to see how your
Teleset is provisioned at the switch. You will have at least one Directory
Number and at least one, or more, Call Appearances. Both the Directory
Numbers and the Call Appearances must mirror the provisioning at the
switch.

DSS/BLF (DIRECT STATION SELECT, BUSY LAMP FIELD)
DSS – This feature allows calls to be transferred to a station without
dialing the station on the keypad.
BLF – For use by attendant consoles - When an incoming call rings the
main number, an attendant can use this feature to check the status
of a line for a busy condition. If inactive, a call may then be
transferred by using the DSS key.
NOTE: Only Non-PrimCA keys can be programmed as a ConfCA.
You must first change a PrimCA key to a General CA key.

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i2021 ISDN Teleset

PROGRAMMING A DSS/BLF (DIRECT STATION SELECT /
BUSY LAMP FIELD) FEATURE
To program a DSS/BLF
1. Ensure the Call Appearances to be used for the BLF are set to
General Call Appearances.
2. press MENU, MORE, MORE, MORE, DSS/BLF
3. Select a Call Appearance. Press it a second time to confim your
selection.
4. Press the SetAddr softkey. If your line is a Centrex line, the DN must
be edited. For convenience, 4-digit, 5-digit, and 7-digit dialing options
are provided. Use the edit key to effect the changes.
DSS/BLF Operation
After you answer the incoming call, press the Transfer Key. You will
receive dial tone. Press the appropriate DSS key and then Transfer. The
call will be transferred.
TSMS Not Available in this Release

KEY MAPPING
The i2021supports a local feature called Key Mapping. The purpose of the
Key Mapping feature is to allow features that have Feature Activators
higher than Key 16 to appear on a hardkey.
For example, the North American ISDN Users Forum (NIUF) recommends
using Key 57 as a Call Forward key. Key 57 defaults as a softkey on the
i2021 Teleset. Key Mapping will allow Feature Key 57 to be “mapped” to a
hardkey on the i2021. This may be useful, since the Teleset would now
light the hardkey’s adjacent LED when Call Forward Feature Key is active.
To remap a hardkey press MENU, MORE, MORE, Config, SetKey. The
display will now be:

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i2021 ISDN Teleset
Press MapFA and the display will be as shown below.

Press the hardkey that you would like to remap. If you select a key that is
not available you will be prompted to “Try Another Key.” When you select
an available key the display will show:

NOTE: Key (xx) will be the number of the hardkey you select. At
this point, use the dial keypad to enter the Feature
Number (Activator/Identifier) that you want to appear on
the key you selected. In our example, we entered 57.
Press Save to remap the key.
Press MENU to exit the idle menu. At this point the hardkey you selected
will be the Feature you entered. Pressing that key will activate or
deactivate (toggles) the feature. For a complete list of the NIUF
recommended Feature Keys contact your service provider.

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i2021 ISDN Teleset

INSPECT
Inspect is a National ISDN feature. Check with your local service provider
regarding the availability of the Inspect feature. If available, your service
provider will assign this feature to one of the keys on your Teleset.
NOTE: In order for the Inspect feature to work, it must be
assigned to one of the hardkeys (designated 1 through
16). Choose a key after your Call Appearance keys are
designated. For example, if we designate keys 1 through
5 as Call Appearance keys, we can then select any key
between 6 and 16 as our Inspect key.
The purpose of the Inspect key is to allow the user to query the serving
switch as to what features or Call Appearances are assigned to which
keys on the Teleset.
The i2021 Teleset contains feature keys up to key 96. Feature keys above
key 16 are automatically assigned to softkeys. However, all keys may be
mapped to hardkeys if desired. For further information, refer to the
paragraph that explains “key mapping.”
To Use the Inspect feature, press the Inspect Feature key.

You can then either press one of the hardkeys (1-16), or enter a number
on the dial keypad. For example, suppose you wish to inspect key 2. First
press the Inspect key, then press key 2. The switch then displays the Call
Appearance, or feature, assigned to key 2. Perhaps you wonder what is
assigned to key 60? To find out we must remember that keys over 16 are
automatically assigned to a softkey. Since key 60 is a softkey, you must
enter 60 followed by a # sign, on the keypad. The switch then displays the
Call Appearance or feature assigned to key 60.

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i2021 ISDN Teleset

NOTE: Inspect is a timed feature in the switch. After pressing the
Inspect key, you are given about ten seconds to enter the
key number that you wish to inspect.
Inspect or View?
The i2021 Teleset has a “local inspect” feature built into the Teleset. The
local inspect feature is called “View.” Refer to the paragraph that explains
View for additional information. What is the difference between Inspect
and View? View shows the user the Teleset information about a specific
key. Inspect displays what the switch has actually assigned to that key.

VIEW
View is a feature that is local to the phone. It will only reflect the current
programming of the phone. To ensure accuracy, ReqParam/RunSPM
before using View.
Key assignments should be checked if features/options do not seem to
work correctly. Often the Teleset is blamed for incorrect or missing key
assignments. This results in returned instruments, unnecessary expense
and loss of use. The following steps will help to verify your Teleset
operation.

TESTING
You can test the operation of your Teleset by using a simple, built-in
diagnostic procedure. To begin, follow these steps.e
1. Press MENU, MORE, Test

2. Select the test you wish to run.
3. Press the MENU key to exit.
46

i2021 ISDN Teleset

MAINTAINING THE TELESET
TROUBLINGSHOOTING PROBLEMS
Clock Flashes
 The Teleset lost power and the clock flashes when power is restored.
 Resetting the flashing clock:
No Display
Contrast control is improperly adjusted.
The Teleset has no power.
1. Check the power source.
2. Check the position of the PS1/PS2 switch.




Speakerphone Does Not Work/No Sound From Speaker
 Volume control set too low.
 Teleset in headset mode.
 Line not initialized.
 Headset plugged into headset jack.
Missing Feature Keys
Teleset improperly programmed.
1. ReqParam/RunSPM download not performed.
2. Manual programming not performed.



Missing Call Appearances Same as “Missing Feature Keys.”
No Transmit from Headset, Receives OK
 Mute Key - ON.
Line Not Ready
 No S/T synchronization from NT1.
Can’t Set DSS/BLF, ConfCA, or Other CA Types
 The Teleset defaults all Call Appearances to PrimCA types. Only
General Call Appearances can be changed.
1. Go to PrimCA and set the desired Call Appearances to General
Call Appearances.
2. Set the new CA Type.
Can’t Set Call Appearances back to PrimCA
 The Call Appearance is probably not a General CA.
1. Check ConfCA.
2. DSS/BLF.
3. Term OnlyCA.
47

i2021 ISDN Teleset
4. Priort CA.
5. Set them to General as required.

48

i2021 ISDN Teleset

GLOSSARY
The definitions in this Glossary refer to the i2021 Teleset only.
Call Appearance (CA) - A hardkey on the Teleset that is programmed for
voice communication. A CA may have a unique Directory Number, or
it may be the same telephone number that appears on other keys or
other Telesets.
Call Appearance Call Handling (CACH) - Pronounced “cash”- Refers to a
translation in the Central Office switch. CACH is the recommended
setting for the i2021.
Customer Premises Equipment (CPE) - Devices residing at or on the
customers’ premises. The i2021 Teleset is CPE.
CENTREX - A business telephone service offered by the local telephone
company. CENTREX offers many Electronic Key Telephone features
to enhance the operation of the i2021.
Directory Number (DN) - Also known as a telephone number.
Electronic Key Telephone Service (EKTS) - A feature that allows the
Teleset to have Multiple Call Appearances (MCA) and Shared Call
Appearances (SCA).
ISDN Ordering Code (IOC) - This is a code supplied by a terminal
manufacturer to be used by the telephone company in provisioning the
ISDN service. (See TP Packages)
Multiple Call Appearance (MCA) - Additional Call Appearances of the
same Directory Number.
Network Termination 1 (NT1) - A piece of CPE required to interface “S”
interface devices with the “U” interface from the telephone company.
Non-Volatile (memory) - Information that is stored in the telephone that will
not be lost if memory power is removed from the telephone.
On/Off-Hook - When a Call Appearance LED is lit and the user is listening
to dial tone, is communicating, or has an active call on hold. A
handset removed from the cradle does not necessarily mean the
Teleset is off-hook. The i2021 can be on-hook with the handset
removed from the cradle.

49

i2021 ISDN Teleset
Primary Directory Number (PDN) - The telephone number of a particular
telephone. Some telephone companies require the PDN to be Key 1.
It is recommended that key 1 be the PDN.
“S” Interface - The 4-wire interface between the ISDN telephone and the
NT1. In the i2021 it is the same point as the “T” interface.
Shared Call Appearance (SCA) - A Call Appearance that appears on more
than one ISDN telephone. Similar to an extension phone in an analog
telephone application.
Service Profile IDentifier (SPID) - A code programmed into the telephone
and used by the switch to identify the configuration used by the
telephone. The SPID is usually the PDN plus 0101.
“T” Interface -See “S” interface.
TP Packages - A set of translations that the telephone company may offer.
The TP packages offer a variety of commonly used features in an easy
order package.
Terminal Endpoint Identifier (TEI)- A code used by the telephone to
identify it to the switch. The i2021 uses Automatic (Dynamic) TEIs.
“U” Interface - The 2-Wire interface between the NT1 and the telephone
company line.
Volatile (memory) - Information which is stored in the telephone which will
be lost when power is removed from the Teleset.

50

i2021 ISDN Teleset

INDEX
Direct Station Select, 42, 43
Directory, 30
Directory Number, 10, 42
Display
Angle, 17
Contrast, 16
LCD, 14
Tilting, 1
Drop, 35, 37

A
Alarm Clock, 2, 23
Auto
Hold, 2, 21
Install, 10, 11
SPID, 10
Switch, 10
B

F

Backlighting, 16
Battery Backup, 2
Busy Lamp Field, 42, 43

Feature Keys, 2
Features, 1
Features, Network, 3
Features, Voice Operation, 2
Firmware Upgrades, 1

C
Call Appearance
ConfCA, 41
Keys, 10
LEDs, 18
PrimCA, 40
PriortCA, 41
TermOnlyCA, 42
Call Record, 2
Call Records
Call Log, 34, 35
New Log, 34
Call Status Lamps, 2
Call Timer, 3
Calls
Answering Incoming, 20
Placing
Off-Hook, 20
On-Hook, 20
Clock, 2
Conference, 35, 36, 37, 38, 39, 41
Configurations, Line, 9
Connections, Line & Power, 6
Contrast, 16
Cross-Compatability, 1

G
Glossary, 49
H
Hardkeys
Hold, 19, 21
Menu, 18
More, 18
Mute, 19
Non-Programmable, 18
Redial, 19, 30
Speaker, 2, 19
Volume/Ringer, 2, 19, 26
Headset Jack, 3
Hold Key, 19, 21
Hold, Automatic, 2, 21
I
Idle Line Preference, 20
Indicators, 18
Inspect, 45, 46
Install, Auto, 10, 11
Interfaces, ISDN, 5

D
Date & Time Setting, 22
51

i2021 ISDN Teleset
On-Hook Dialing, 20

J
Jack, Headset, 3

P
Passive Bus, 8
Password, 2, 33, 34
Point-to-Point Circuits, 8
Power Connections, 6
Primary Call Appearance, 40
Priority Call Appearance, 41
Programmable Features, 1
PS1/PS2, 7

K
Key 1 Preference, 21
Key Caps, Changing, 3
Key Mapping, 43
Key, Hold, 19, 21
Keypad, 3, 4
Keys, Feature, 2
L

R

Language, Changing, 3
Levels, Password, 33
Line
Configurations, 9
Connections, 6
Preference
Idle Line, 20
Key 1, 21
No, 21
Ringing Line, 20
Setting, 21
Liquid Crystal Display (LCD), 14
Local Features, 2

Redial, 19, 30
Ringer Controls, 2
Ringer Volumes, 19
Ringing Line Preference, 20
Ringing Pattern, 25
S
Setting Line Preferences, 21
Soft Keys, 14
Speaker Phone, 2, 19
Speed Dial, 26, 27
SPID, 9, 10
Switch Settings, 6, 7, 10, 11, 12
Switch Type, 10
System Configurations, 8

M
Manual SPID, 11
Manual Switch Settings, 11, 12
Memory, Non-Volatile, 2
Menu, 18
Message Waiting Lamp, 18
More, 18
Multi Point, 8
Mute, 19

T
Terminating Resistors, 7
TermOnly Call Appearance, 42
Testing, 46
Tilting Display, 1, 17
Time & Date Setting, 22
Transfer, 35, 36
Trouble Shooting, 47

N
Network Features, 3
No Line Preference, 21
Non-Volatile Memory, 2

V
View, 46
Viewing Angle, 17
Voice Operation Features, 2
Volume, 2, 19, 26

O
Off-Hook Dialing, 20
52



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