Huawei Technologies MC703 Wireless Module supporting CDMA/EvDO 800/1900 User Manual

Huawei Technologies Co.,Ltd Wireless Module supporting CDMA/EvDO 800/1900

Contents

User Manual 1

AT Command Manual MC703 Wireless Module V100R001 Issue 01 Date 2009-09-05 HUAWEI TECHNOLOGIES CO., LTD.
Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For any assistance, please contact our local office or company headquarters. Huawei Technologies Co., Ltd. Address: Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China Web site: http://www.huawei.com Email: support@huawei.com Copyright © Huawei Technologies Co., Ltd. 2008. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied. FCC Statement 15.19 NOTICE: 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.
15.21 NOTICE: Changes or modifications made to this device not expressly approved by Huawei Technologies Co., Ltd. may void the FCC authorization to operate this device. 15.105 NOTE: This device 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 device 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 device does cause harmful interference to radio or television reception, which can be determined by connecting or disconnecting the device to a PC, the user is encouraged to try to correct the interference by adopting one or more of the following measures: Reorient or relocate the receiving antenna. Increase the distance between the device and the receiver. Connect the device to an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio or TV technician for help. FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this device. This device is intended for OEM integrators only. Host system must be labeled with "Contains FCC ID: QISMC703", FCC ID displayed on label. Antenna use: The antenna(s) used for this transmitter must be installed to provided a separation distance of at least 20cm from all persons.
HUAWEI MC703 Wireless Module AT Command Manual Contents i Contents Chapter 1 Basic AT Parameters .............................................................................................. 1-1 1.1 Command Echo ................................................................................................................. 1-1 1.2 Quiet Results Codes Control ............................................................................................. 1-1 1.3 Result Code Form .............................................................................................................. 1-2 1.4 Soft Reset .......................................................................................................................... 1-3 1.5 Restore Factory Configuration ........................................................................................... 1-4 1.6 DCD Option ........................................................................................................................ 1-4 1.7 DTR Option ........................................................................................................................ 1-5 1.8 S-Parameters ..................................................................................................................... 1-6 Chapter 2 Extended AT Configuration Commands ................................................................. 2-1 2.1 Query minimun capability .................................................................................................. 2-1 2.2 Query the manufacturer name ........................................................................................... 2-2 2.3 Query Model Number ........................................................................................................ 2-2 2.4 Query minimun capability .................................................................................................. 2-3 2.5 Local Flow Control ............................................................................................................. 2-4 2.6 Local Rate Reporting. ........................................................................................................ 2-5 2.7 Fixed RM Rate .................................................................................................................... 2-6 Chapter 3 Fax Parameters ....................................................................................................... 3-1 3.1 Service-class Selection ...................................................................................................... 3-1 3.2 Pass Unrecognized Commands to the IWF ...................................................................... 3-2 3.3 Query Current Service Type .............................................................................................. 3-2 3.4 Um Interface Data Compression Reporting ....................................................................... 3-3 3.5 Um Interface Data Compression ....................................................................................... 3-4 3.6 Set Rm Interface Protocol .................................................................................................. 3-5 Chapter 4 CDMA AT Parameter Commands ........................................................................... 4-1 4.1 Query Serving System. ...................................................................................................... 4-1 4.2 Query Received Signal Quality .......................................................................................... 4-2 Chapter 5 Packet Data Service AT Commands....................................................................... 5-1 5.1 Set Um Packet Data Inactivity Timer ................................................................................. 5-1 5.2 QNC Setting ....................................................................................................................... 5-2 5.3 Multiplex Option Control .................................................................................................... 5-2 5.4 SCRM Setting .................................................................................................................... 5-4
HUAWEI MC703 Wireless Module AT Command Manual Contents ii 5.5 R-SCH Throttling Setting ................................................................................................... 5-4 5.6 DM Baud Rate Control ....................................................................................................... 5-5 5.7 Medium Data Rate Control ................................................................................................ 5-6 Chapter 6 Proprietary AT Command Set ................................................................................. 6-1 6.1 Transition To Diagnostics Monitor (DM) Operation ........................................................... 6-1 6.2 Protocol Revision In Use ................................................................................................... 6-2 6.3 Dump Configuration Parameters ....................................................................................... 6-2 6.4 Set Data Service Option Number Set ................................................................................ 6-3 6.5 Clear Mobile Error Log ....................................................................................................... 6-4
HUAWEI MC703 Wireless Module AT Command Manual 1-1 Chapter 1 Basic AT Parameters 1.1 Command Echo Syntax ATE<n> Parameter The <n> is decimal number corresponding to the option:  0: Disables command echo  1: Enables command echo. (Default.) Description The command enables or disables the echo of characters to the DTE. Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR. Example ATE1 OK ATE0 OK 1.2 Quiet Results Codes Control Syntax ATQ<n>
HUAWEI MC703 Wireless Module AT Command Manual 1-2 Parameter The <n> is decimal number corresponding to the option:  0: Enables result codes to the DTE. (Default.)  1: Disables result codes to the DTE. Description The command enables or disables the sending of result codes to the DTE. Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR. Example ATQ0 OK ATQ1 OK 1.3 Result Code Form Syntax ATV<n> Parameter The <n> is decimal number corresponding to the option:  0: Enables short-form (terse) result codes. Line feed is not issued before a short-form result code.  1: Enables long-form (verbose) result codes. (Default.) Description This command selects the sending of short-form or long-form result codes to the DTE.
HUAWEI MC703 Wireless Module AT Command Manual 1-3 Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR. Example ATV0 OK ATV1 OK 1.4 Soft Reset Syntax ATZ<n> Parameter The <n> is always 0  If no <value> is specified, zero is assumed. Description This command causes the modem to perform a soft reset. Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR. Example ATZ OK ATZ0 OK
HUAWEI MC703 Wireless Module AT Command Manual 1-4 1.5 Restore Factory Configuration Syntax AT&F<n> Parameter The <n> is always 0  If no <value> is specified, zero is assumed. Description Same behavior as ATZ. Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR. Example AT&F OK AT&F0 OK 1.6 DCD Option Syntax AT&C<n> Parameter The <n> is decimal number corresponding to the selected option:  0: DCD remains ON at all times.  1: DCD ON in accordance with the specified service.
HUAWEI MC703 Wireless Module AT Command Manual 1-5  2: DCD always on except wink on channel disconnect. Description The modem controls the DCD output in accordance with the parameter supplied. Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR. Example AT&C0 OK 1.7 DTR Option Syntax AT&D<n> Parameter The <n> is decimal number corresponding to the selected option:  0: Ignore DTR  1: For async service, modem enter online command state following ON-to-OFF transition of DTR; for pkt service, modem end call following On-to-Off transition of  DTR;  2: End call following On-to-Off transition of DTR. Description This command interprets the ON to OFF transition of the DTR signal from the DTE in accordance with the parameter supplied. Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR.
HUAWEI MC703 Wireless Module AT Command Manual 1-6 Example AT&D0 OK 1.8 S-Parameters Syntax ATS<n>? ATS<n>=<value> Parameter The number <n> following the "S" indicates the "parameter number" being referenced. If the number is not recognized as a valid parameter number, an ERROR result code is issued. Immediately following this number, either a "?" or "=" character must appear. "?" is used to read the current value of the indicated S-parameter; "=" is used to set the S-parameter to a new value. S-Parameter definitions S0 - Number of Rings to Auto-Answer S0 sets the number of the rings required before the modem automatically answers a call. the autoanswer function pertrains to Async and Fax services only. Setting this parameter to zero disables auto-answer mode. <value>Range: 0-255 rings Default: 0 S3 - Carriage Return Character S3 sets the command line and result code terminator character Range: 0-127, ASCII decimal Default: 13 (Carriage Return)
HUAWEI MC703 Wireless Module AT Command Manual 1-7 S4 - Line Feed Character S4 sets the character recognized as a line feed. The Line Feed control character is output after the Carriage Return control character if verbose result codes are used. Range: 0-127, ASCII decimal Default: 10 (Line Feed) S5 - Backspace Character S5 sets the character recognized as a backspace. The modem will not recognize the Backspace character if it is set to a value that is greater than 32 ASCII. Range: 0-32, ASCII decimal Default: 8 (Backspace) Description Reports the value of an S-Parameter or performs an S-Parameterwrite function. Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR. Example ATS0=3 OK ATS0? 3 OK
HUAWEI MC703 Wireless Module AT Command Manual 2-1 Chapter 2 Extended AT Configuration Commands 2.1 Query minimun capability Syntax AT+GCAP Parameter None Description This extended-format command causes the MT2 to transmit one or more lines of information text in a specific format. The content is a list of additional capabilities command +<name>s, which is intended to permit the user of the MT2 to identify the minimum capabilities of the MT2. Return Value If the command succeeds, the display is: OK Otherwise, the display is ERROR. An MT2 conforming to this standard shall include the following items, as a minimum, in the result code for the +GCAP command:* +CIS707, +MS, +ES, +DS, +FCLASS Example AT+GCAP +CIS707-A, +MS, +ES, +DS, +FCLASS OK Application
HUAWEI MC703 Wireless Module AT Command Manual 2-2 2.2 Query the manufacturer name Syntax AT +GMI Parameter None Description This command causes the T2 to transmit one or more lines of information text,determined by the manufacturer, which is intended to permit the user of the MT2 to identify the manufacturer. Typically, the text will consist of a single line containing the name of the manufacturer, but manufacturers may choose to provide more information if desired (for example, address, telephone number for customer service, and so on) Return Value If the command succeeds, the display is: OK Otherwise, the display is ERROR. Example AT+GMI +GMI: HUAWEI Technologies OK Application 2.3 Query Model Number Syntax AT+GMM
HUAWEI MC703 Wireless Module AT Command Manual 2-3 Parameter None Description This command causes the MT2 to transmit one or more lines of information text, determined by the manufacturer, which is intended to permit the user of the MT2 to identify the specific model of the device. Typically, the text will consist of a single line containing the name of the product, but manufacturers may choose to provide any information desired Return Value If the command succeeds, the display is: OK Otherwise, the display is ERROR. Example AT+GMM +GMM: Model 199 OK Application 2.4 Query minimun capability Syntax AT+GMR Parameter None Description This command causes the MT2 to transmit one or more lines of information text, determined by the manufacturer, which is intended to permit the user of the MT2 to identify the version, revision level or date, or other pertinent information of the
HUAWEI MC703 Wireless Module AT Command Manual 2-4 device. Typically, the text will consist of a single line containing the version of the product, but manufacturers may choose to provide any information desired. Return Value If the command succeeds, the display is: OK Otherwise, the display is ERROR. Example AT+GMR +GMR: S/W VER: QSC6020-APP-3350 1 [Aug 31 2007 01:00:00] OK Application 2.5 Local Flow Control Syntax AT+IFC=<fct1>,<fct2> Parameter <fct1>,<fct2>Flow control type  0 – FCTL_OFF  1 – XONXOFF_STRIP_FCTL  2 – CTSRFR_FCTL  3 – XONXOFF_NSTRIP_FCTL Description TE2-MT2 Local Flow Control.This extended-format compound parameter is used to control the operation of local flow control between the TE2 and MT2 ;.TIA/EIA/IS-131 states that this command only applies when the V.42 error control is being used, or when fallback to nonerror control mode is specified to include buffering and flow control. In this standard, this command applies independently of the use and setting of V.42. If V.42 is not used or not configured appropriately, data loss may occur.
HUAWEI MC703 Wireless Module AT Command Manual 2-5 Return Value If the command succeeds, the display is: OK Otherwise, the display is ERROR. Example AT+IFC=3,0 OK Application 2.6 Local Rate Reporting. Syntax AT+ILRR =<num> Parameter <num>  0 – Mobile Accepts only “OFF” Description This extended-format numeric parameter controls whether the extended-format +ILRR:<rate> information text is transmitted from the MT2 to the TE2. Return Value If the command succeeds, the display is: OK Otherwise, the display is ERROR. Example AT+ILRR=0
HUAWEI MC703 Wireless Module AT Command Manual 2-6 OK Application 2.7 Fixed RM Rate Syntax AT+IPR= <rate> Parameter <rate> RM Rate  45, 50, 75, 110, 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 Note: Rate (45, 50, 75, 110, 150) is not supported currently. And the serial port of most computers can only supported with rate below 115200bps. So some values won’t be show up when query it. Description This numeric extended-format parameter specifies the data rate at which the MT2 will accept commands, in addition to 1200 bit/s or 9600 bit/s (as required in EIA/TIA-602). It may be used to select operation at rates at which the MT2 is not capable of automatically detecting the data rate being used by the TE2. Return Value If the command succeeds, the display is: OK Otherwise, the display is ERROR. Example AT+IPR=115200 OK
HUAWEI MC703 Wireless Module AT Command Manual 2-7 Application
HUAWEI MC703 Wireless Module AT Command Manual 3-1 Chapter 3 Fax Parameters 3.1 Service-class Selection Syntax AT+FCLASS=<value> Parameter Value  0 Class-0  1 [Class-1 support unavailable] mobile will return ERROR for +FCLASS=1  2 Class-2.0 fax service Description Service-class selection parameter Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR. Example AT+FCLASS=? 0,2.0 OK AT+FCLASS=1 ERROR AT+FCLASS? 2.0 OK
HUAWEI MC703 Wireless Module AT Command Manual 3-2 3.2 Pass Unrecognized Commands to the IWF Syntax AT+CXT=<value> Parameter value:  0 – Do not pass unrecognized commands to the IWF.  1 – When detecting an unrecognized AT command, open transport layer connection and pass unrecognized command to the IWF. Description Pass unrecognized commands to the IWF. Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR. Example AT+CXT=? +CXT: (0-1) OK AT+CXT=2 ERROR 3.3 Query Current Service Type Syntax AT+CAD? Parameter None
HUAWEI MC703 Wireless Module AT Command Manual 3-3 Description Query current Service type Return Value  0 – If no service is available  1 – If CDMA Digital service is available  2 – If TDMA Digital service is available  3 – If Analog service is available (values 4 to 255 reserved) Example AT+CAD? +CAD: 1 OK 3.4 Um Interface Data Compression Reporting Syntax AT+CDR=<value> Parameter value:  0 –Do not report Um Interface Data Compression  1 –Report Um Interface Data Compression Description Um Interface Data Compression Reporting. This extended-format numeric parameter controls whether the extended-format intermediate result code is transmitted by the MT2. The result code is the same as for the TIA/EIA/ IS-131 +DR: result code. Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR.
HUAWEI MC703 Wireless Module AT Command Manual 3-4 Example AT+CDR? +CDR: 0 OK AT+CDR=? +CDR: (0-1) OK AT+CDR=1 OK AT+CDR=2 ERROR 3.5 Um Interface Data Compression Syntax AT+CDS=<v1>,<v2>,<v3>,<v4> Parameter  V1,v2,v3,v4 is the version of compression algorithm. Description Um Interface Data Compression.This extended-format compound parameter controls the V.42bis data compression function on the Um interface. Mobile will only accept 0 as a valid setting. Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR. Example AT+CDS? +CDS: 0,1,2048,6 OK
HUAWEI MC703 Wireless Module AT Command Manual 3-5 AT+CDS=1 ERROR AT+CDS=? +CDS: (0),(1),(512-65535),(6-250) OK AT+CDS=0,1,4096, 7 OK 3.6 Set Rm Interface Protocol Syntax AT+CRM=<value> Parameter value:  0 – Asynchronous Data or Fax  1 – Packet data service, Relay Layer Rm interface  2 – Packet data service,Network Layer Rm interface,PPP  3 – Packet data service,Network Layer Rm interface,SLIP  4 – STU-III Service  5-127 – Reserved for future use  128-255 – Reserved for manufacturer-specific use Description Set Rm interface protocol. The default value for the parameter shall be 0 if this value is supported by the MT2. If 0 is not supported, the default value shall be manufacturer-specific. Mode selection occurs automatically based on data received. Return Value If the command is resolved correctly, the display is OK Otherwise, the display is ERROR. Example AT+CRM
HUAWEI MC703 Wireless Module AT Command Manual 3-6 OK AT+CRM =? +CRM: (0-2) OK AT+CRM? +CRM: 0 OK
HUAWEI MC703 Wireless Module AT Command Manual 4-1 Chapter 4 CDMA AT Parameter Commands 4.1 Query Serving System. Syntax AT +CSS? Parameter None Description Query Serving System. Return Value +CSS: <Band Class>, <Band>, <SID> Band Class:  C – The mobile station is registered with a cellular system.  P – The mobile station is registered with a PCS system. Band:  CA – The mobile station is registered with a cellular A-band system.  CB – The mobile station is registered with a cellular B-band system.  PA – The mobile station is registered with a PCS A-band system.  PB – The mobile station is registered with a PCS B-band system.  PC – The mobile station is registered with a PCS C-band system.  PD – The mobile station is registered with a PCS D-band system.  PE – The mobile station is registered with a PCS E-band system.  PF – The mobile station is registered with a PCS F-band system.  Z – The mobile station is notregistered. SID:  0-16383 – The mobile station is registered with the system indicated.  99999 – The mobile station is not registered.
HUAWEI MC703 Wireless Module AT Command Manual 4-2 Example AT+CSS? ?, 14655 OK 4.2 Query Received Signal Quality Syntax AT +CSQ? Parameter None Description Query Received Signal Quality. Returns the Signal Quality Measure <SQM> and the Frame Error Rate <FER>. Return Value +CSQ:<SQM>, <FER> Signal Quality Measure <SQM>  0-31 – Signal Quality Measurement (see “Note” below).  99 – SQM is not known or is not detectable.  All other values are reserved. Frame Error Rate <FER>  0 – <0.01%  1 – 0.01% to less than 0.1%  2 – 0.1% to less than 0.5%  3 – 0.5% to less than 1.0%  4 – 1.0% to less than 2.0%  5 – 2.0% to less than 4.0%  6 – 4.0% to less than 8.0%  7 – 8.0%  99 – <FER> is not known or is not detectable.  All other values are reserved.
HUAWEI MC703 Wireless Module AT Command Manual 4-3 Example AT+CSQ? +CSQ: 31, 99 OK
HUAWEI MC703 Wireless Module AT Command Manual 5-1 Chapter 5 Packet Data Service AT Commands 5.1 Set Um Packet Data Inactivity Timer Syntax AT+CTA=<value> AT+CTA=? AT+CTA? Parameter <value>: ranges from 0 to 255  0: Traffic Channel not released during inactivity periods.  1-255: Release the Traffic Channel after <value> 1-second intervals have elapsed since last sending or receiving RLP data frames on the Um interface.  20: (default) The AT+CTA=? command is used to query the parameter range of the +CTA command. The AT+CTA? command is used to query the current value of the +CTA parameter. Description Set/Read/Test Um packet data inactivity timer. Return Value If the command fails, the display is: ERROR If the command succeeds, the display is: OK Example AT +CTA=30
HUAWEI MC703 Wireless Module AT Command Manual 5-2 OK 5.2 QNC Setting Syntax AT$QCQNC=<onoff> Parameter <onoff>  0: indicates to disable QNC (use Packet Data service option numbers) (default for HSPD builds).  1: indicates to enable QNC (use Async Data Service Option numbers for Packet Data calls). Description Enable/disable QNC capability. Quick Net Connect (QNC) is a different means of performing basic packet data service. Return Value If the command fails, the display is: ERROR If the command succeeds, the display is: OK Example AT$QCQNC=1 OK 5.3 Multiplex Option Control Syntax AT+CMUX=<A>,<B>
HUAWEI MC703 Wireless Module AT Command Manual 5-3 Parameter  <A>: max. multiplex option to use for the Forward link. Valid numbers are 1 to F (hexadecimal).  <B>: max. multiplex option to use for the Reverse link. Valid numbers are 1 and 2.  Default is C,2.  Rules: If A is omitted, it is assumed to have the same value as B. If A is not omitted, its value remains the same as the previous invocation (or the default). A and B must be either both odd or both even. If A & B are odd, then the phone will originate Data calls using Rate Set 1. If A & B are even, then the phone will originate Data calls using Rate Set 2. Description This command is used to set the maximum number of multiplex options for the forward and reverse links for MDR (HSPD) calls. Return Value If the command fails, the display is: ERROR If the command succeeds, the display is: OK Example AT+CMUX=B,1 OK AT+CMUX=1 OK Application This command format is for MDR (HSPD) builds only. Non-MDR builds use the IS-707 +cmux format 1 (at+cmux=X where X can be 1 for Rate Set 1 or 2 for Rate Set 2).
HUAWEI MC703 Wireless Module AT Command Manual 5-4 5.4 SCRM Setting Syntax AT$QCSCRM=<onoff> Parameter <onoff>  0: indicates that Mobile never SCRMs.  1: indicates that Mobile can SCRM as needed. Description For IS2000 mobiles, this enables/disables the mobile from SCRM’ing. Return Value If the command fails, the display is: ERROR If the command succeeds, the display is: OK Example AT$QCSCRM=0 OK Application Command only applies to SO 33 calls. This value is stored in NV. The default is 1. For MSM500, MSM5105, and MSM5100 ASICs only. 5.5 R-SCH Throttling Setting Syntax AT$QCTRTL=<onoff> Parameter <onoff>:
HUAWEI MC703 Wireless Module AT Command Manual 5-5  0: indicates that Mobile never throttles R-SCH.  1: indicates that Mobile can throttle R-SCH as needed. Description For IS2000 mobiles, this enables/disables the mobile from throttling the R-SCH. The R-SCH is throttled when the assigned R-SCH rate is considered “too high” and could over utilize the CPU. Return Value If the command fails, the display is: ERROR If the command succeeds, the display is: OK Example AT$QCTRTL=0 OK Application Command only applies to SO 33 calls. This value is stored in NV. Default is 1. For MSM500, MSM5105, and MSM5100 ASICs only. 5.6 DM Baud Rate Control Syntax AT$QCDMR=<value> Parameter  <value> : includes 19200, 38400, 57600, 115200, 230400, and 460800, indicating DM baud rate. Note: Only support these rates(38400, 57600, 115200) in this versions Description This command is to set DM baud rate.
HUAWEI MC703 Wireless Module AT Command Manual 5-6 Return Value If the command fails, the display is: ERROR If the command succeeds, the display is: OK Example AT$QCDMR=115200 OK 5.7 Medium Data Rate Control Syntax AT$QCMDR=<value> Parameter <value> : ranges from 0 to 3, indicating Medium Data Rate.  0: indicates MDR Service Only. The mobile will originate with SOS 22 or SO 25. The mobile will not negotiate to any other service option if SO 22 and SO 25 are unavailable.  1: indicates MDR Service, if available. The mobile will originate with SO 22 or SO 25, but will negotiate to a Low-Speed Packet service option if MDR is not available. The mobile will not negotiate to SO 33.  2: indicates LSPD only. The mobile will originate a Low-Speed Packet call only. The mobile will not negotiate to SO 22, SO 25, or SO 33.  3: indicates SO 33, if available. The mobile will negotiate to MDR or Low-Speed Packet service options if SO 33 is not available. Description This command is to set Medium Data Rate (MDR) (also known as HSPD) setting. Return Value If the command fails, the display is: ERROR
HUAWEI MC703 Wireless Module AT Command Manual 5-7 If the command succeeds, the display is: OK Example AT$QCMDR=3 OK
HUAWEI MC703 Wireless Module AT Command Manual 6-1 Chapter 6 Proprietary AT Command Set 6.1 Transition To Diagnostics Monitor (DM) Operation Syntax AT $QCDMG Parameter None Description This command will return “OK” and then transition the phone serial port to DM mode. DM mode runs at 38.4 Kbps and uses a proprietary half-duplex protocol. Return Value If the command fails, the display is: ERROR If the command succeeds, no display. OK Example AT$QCDMG
HUAWEI MC703 Wireless Module AT Command Manual 6-2 6.2 Protocol Revision In Use Syntax AT$QCPREV Parameter None Description This command will get the Protocol revision in use. Return Value Returns one of the following codes:  1: JSTD008, 3: IS_95A, 4: IS_95B, 6: IS_2000 Example AT$QCPREV 6 6.3 Dump Configuration Parameters Syntax AT&V Parameter None Description This command will dump the status of all AT parameters. This includes the single-letter parameters not otherwise readable, but does not include the +QC parameters.
HUAWEI MC703 Wireless Module AT Command Manual 6-3 Return Value status of all AT parameters. Example AT&V &C: 2; &D: 2; &F: 0; E: 1; L: 0; M: 0; Q: 0; V: 1; X: 4; Z: 0; S0: 0 S10: 14; S11: 95; S3: 13; S4: 10; S5: 8; S6: 2; S7: 50; S8: 2; S9: 6 +FCLASS: 0; +CFG: ""; +FCC: 0,1,0,0,0,0,0,0; +FIS: 0,1,0,0,0,0,0,0 +CDR: 0; +CDS: 0,1,2048,6; +CFC: 0; +CQD: 10; +CRC: 0; +CRM: 0; +CTA: 0 +CXT: 0; +DR: 0; +DS: 3,0,2048,6; +EB: 1,0,30; +EFCS: 1; +ER: 0 +ES: 3,0,2; +ESR: 1; +ETBM: 1,1,20; +FAA: 0; +FAP: 0,0,0; +FBO: 0 +FBU: 0; +FCQ: 1,0; +FCR: 0; +FCT: 1E; +FEA: 0; +FFC: 0,0,0,0; +FHS: 0 +FIE: 0; +FIP: 0; +FLI: ""; +FLO: 1; +FLP: 0; +FMS: 0; +FNR: 0,0,0,0 +FNS: ""; +FPA: ""; +FPI: ""; +FPP: 0; +FPR: 8; +FPS: 1; +FPW: "" +FRQ: 0,0; +FRY: 0; +FSA: ""; +FSP: 0; +ICF: 3,3; +IFC: 2,2; +ILRR: 0 +IPR: 115200; +MA: ; +MR: 0; +MS: ; +MV18R: 0; +MV18S: 0,0,0; +CMUX: C,2 +CMEE: 2; +CMGD: 1 6.4 Set Data Service Option Number Set Syntax AT$QCSO=<number> Parameter Number:  0 : pre-707 SO numbers (RS 1: Async 4, G3 Fax 5, packet 7; RS 2: Async 12, G3 Fax 13, packet 15)  1 : proprietary SO numbers (RS 1: Async 4, G3 Fax 5, packet 7; RS 2: Async 0x8021, G3 Fax 0x8022, packet 0x8020)  2 : IS-707 SO numbers (RS 1: Async 0x1004, G3 Fax 0x1005, packet 0x1007; RS 2: Async 12, G3 Fax 13, packet 15)
HUAWEI MC703 Wireless Module AT Command Manual 6-4 Description This command will Set Data Service Option number set; saves to non-volatile memory. Return Value If the command fails, the display is: ERROR If the command succeeds, the display is: OK. Example AT$qcso=2 ok 6.5 Clear Mobile Error Log Syntax AT$QCCLR Parameter None Description This command will clear the mobile error log. Return Value If the command fails, the display is: ERROR If the command succeeds, the display is: OK.
HUAWEI MC703 Wireless Module AT Command Manual 6-5 Example AT$QCCLR $QCCLR: OK

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