M22 / M23 / M23G AT Command User Guide
Version: 1.7.7
Date: 20/09/2006
© 2006 BenQ Inc. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of BenQ Inc.
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Contents |
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1. INTRODUCTION --------------------------------------------------------------------- |
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2 |
1.1 Introduction to Interface between TE and MS --------------------------------------------- |
2 |
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1.2 Initial the Test Environment --------------------------------------------------------------------- |
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5 |
1.3 How to Handle SMS messages ----------------------------------------------------------------- |
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5 |
2. IMPLEMENTED AT COMMANDS FOR MS-------------------------------- |
11 |
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2.1 Commands specified by GSM REC.27.07 -------------------------------------------------- |
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11 |
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2.1.1 General Commands--------------------------------------------------------------------------------------- |
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11 |
Request manufacturer identification +CGMI----------------------------------------------------------------------------- |
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11 |
Request model identification +CGMM ------------------------------------------------------------------------------------ |
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11 |
Request revision identification +CGMR----------------------------------------------------------------------------------- |
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12 |
Request product serial number identification +CGSN ---------------------------------------------------------------- |
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12 |
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Select TE character set +CSCS -------------------------------------------------------------------------------------------- |
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13 |
Request international mobile subscriber identity +CIMI -------------------------------------------------------------- |
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15 |
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Multiplexing mode +CMUX--------------------------------------------------------------------------------------------------- |
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16 |
PCCA STD-101[17] select wireless network +WS46 ----------------------------------------------------------------- |
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20 |
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2.1.2 Call control commands ----------------------------------------------------------------------------------- |
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21 |
Select Type of Address +CSTA--------------------------------------------------------------------------------------------- |
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21 |
Call mode +CMOD ------------------------------------------------------------------------------------------------------------- |
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22 |
Hang up call +CHUP ---------------------------------------------------------------------------------------------------------- |
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23 |
Select bearer service type +CBST ----------------------------------------------------------------------------------------- |
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23 |
Radio link protocol +CRLP --------------------------------------------------------------------------------------------------- |
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25 |
Service reporting control +CR----------------------------------------------------------------------------------------------- |
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26 |
Extended error report +CEER----------------------------------------------------------------------------------------------- |
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27 |
Cellular result codes +CRC -------------------------------------------------------------------------------------------------- |
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28 |
Single numbering scheme +CSNS ---------------------------------------------------------------------------------------- |
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30 |
Dial command D ---------------------------------------------------------------------------------------------------------------- |
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31 |
2.1.3 Network service related commands------------------------------------------------------------------- |
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32 |
Subscriber number +CNUM ------------------------------------------------------------------------------------------------- |
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32 |
Network registration +CREG ------------------------------------------------------------------------------------------------ |
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34 |
Operator selection +COPS--------------------------------------------------------------------------------------------------- |
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35 |
©2006 BenQ Corporation. |
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Confidential Property |
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AT Command User Manual |
i |
Version: 1.7.7 – 20/09/2006 |
Facility Lock AT+CLCK ------------------------------------------------------------------------------------------------------- |
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38 |
Change password +CPWD -------------------------------------------------------------------------------------------------- |
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40 |
Calling line identification presentation +CLIP |
--------------------------------------------------------------------------- |
41 |
Call line identification restriction +CLIR----------------------------------------------------------------------------------- |
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42 |
Connected line identification presentation +COLP--------------------------------------------------------------------- |
44 |
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Closed user group +CCUG -------------------------------------------------------------------------------------------------- |
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45 |
Call forwarding service +CCFC --------------------------------------------------------------------------------------------- |
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47 |
Call waiting service +CCWA------------------------------------------------------------------------------------------------- |
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49 |
Short string procedure AT+CHLD ------------------------------------------------------------------------------------------ |
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51 |
Unstructured supplementary service data +CUSD--------------------------------------------------------------------- |
53 |
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Advice of Charge +CAOC ---------------------------------------------------------------------------------------------------- |
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55 |
Supplementary service notifications +CSSN ---------------------------------------------------------------------------- |
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56 |
Preferred PLMN list +CPOL ------------------------------------------------------------------------------------------------- |
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59 |
List current calls +CLCC------------------------------------------------------------------------------------------------------ |
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61 |
Read operator names +COPN ---------------------------------------------------------------------------------------------- |
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62 |
Get neighbor cells +GNC----------------------------------------------------------------------------------------------------- |
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63 |
Automatic Time Zone Update +CTZU ------------------------------------------------------------------------------------ |
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64 |
2.1.4 Mobile control and status commands----------------------------------------------------------------- |
65 |
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Phone activity status +CPAS ------------------------------------------------------------------------------------------------ |
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65 |
Set phone functionality +CFUN --------------------------------------------------------------------------------------------- |
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66 |
Enter PIN +CPIN --------------------------------------------------------------------------------------------------------------- |
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67 |
Battery charge +CBC ---------------------------------------------------------------------------------------------------------- |
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69 |
Signal quality +CSQ ----------------------------------------------------------------------------------------------------------- |
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69 |
Restricted SIM access +CRSM --------------------------------------------------------------------------------------------- |
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71 |
Ringer sound level and ringer type select +CRSL --------------------------------------------------------------------- |
73 |
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Loudspeaker volume level +CLVL ----------------------------------------------------------------------------------------- |
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73 |
Mute +CMUT -------------------------------------------------------------------------------------------------------------------- |
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74 |
Accumulated call meter +CACM ------------------------------------------------------------------------------------------- |
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75 |
Accumulated call meter maximum +CAMM ----------------------------------------------------------------------------- |
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76 |
Price per unit and currency table +CPUC -------------------------------------------------------------------------------- |
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77 |
Call Meter maximum event +CCWE--------------------------------------------------------------------------------------- |
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78 |
Set Voice Mail Number +CSVM -------------------------------------------------------------------------------------------- |
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79 |
List all available AT commands +CLAC ---------------------------------------------------------------------------------- |
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80 |
2.1.5 Commands related with phonebook service-------------------------------------------------------- |
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Select phonebook memory storage +CPBS ----------------------------------------------------------------------------- |
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81 |
Read phonebook entries +CPBR------------------------------------------------------------------------------------------- |
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Confidential Property |
AT Command User Manual |
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Version: 1.7.7 20/09/2006 |
Find phonebook entries +CPBF -------------------------------------------------------------------------------------------- |
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84 |
Write phonebook entry +CPBW -------------------------------------------------------------------------------------------- |
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85 |
Report Mobile Equipment error +CMEE---------------------------------------------------------------------------------- |
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87 |
2.1.6 Commands from TIA IS-101 ---------------------------------------------------------------------------- |
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88 |
Select mode +FCLASS ------------------------------------------------------------------------------------------------------- |
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88 |
DTMF and tone generation +VTS ------------------------------------------------------------------------------------------ |
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89 |
Play DTMF tone +WDTMF--------------------------------------------------------------------------------------------------- |
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90 |
Receive gain selection +VGR ----------------------------------------------------------------------------------------------- |
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91 |
Transmit gain selection +VGT----------------------------------------------------------------------------------------------- |
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91 |
2.2 Commands related to short message service |
--------------------------------------------93 |
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2.2.1 General Configuration Commands -------------------------------------------------------------------- |
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97 |
Select Message Service +CSMS------------------------------------------------------------------------------------------- |
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97 |
Preferred Message Storage +CPMS -------------------------------------------------------------------------------------- |
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98 |
Message Format +CMGF ---------------------------------------------------------------------------------------------------- |
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99 |
2.2.2 Message Configuration Commands ----------------------------------------------------------------- |
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100 |
Service Centre Address +CSCA------------------------------------------------------------------------------------------ |
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100 |
Set Text Mode Parameters +CSMP ------------------------------------------------------------------------------------- |
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101 |
Show Text Mode Parameters +CSDH ---------------------------------------------------------------------------------- |
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103 |
Select Cell Broadcast Message Types +CSCB----------------------------------------------------------------------- |
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104 |
Save Settings +CSAS ------------------------------------------------------------------------------------------------------- |
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105 |
Restore Settings +CRES --------------------------------------------------------------------------------------------------- |
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106 |
2.2.3 Message Receiving and Reading Commands |
---------------------------------------------------- |
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New Message Indications to TE +CNMI-------------------------------------------------------------------------------- |
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107 |
List Messages +CMGL------------------------------------------------------------------------------------------------------ |
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111 |
Read Message +CMGR ---------------------------------------------------------------------------------------------------- |
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112 |
NEW Message Acknowledgement to ME/TA +CNMA -------------------------------------------------------------- |
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114 |
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2.2.4 Message Sending and Writing Commands -------------------------------------------------------- |
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115 |
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Send Message +CMGS----------------------------------------------------------------------------------------------------- |
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115 |
Send Message from Storage +CMSS----------------------------------------------------------------------------------- |
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116 |
Write Message to Memory +CMGW------------------------------------------------------------------------------------- |
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117 |
Delete Message +CMGD--------------------------------------------------------------------------------------------------- |
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118 |
Send Command +CMGC--------------------------------------------------------------------------------------------------- |
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119 |
2.2.5 PDU Mode-------------------------------------------------------------------------------------------------- |
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120 |
List Message +CMGL ------------------------------------------------------------------------------------------------------- |
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120 |
Read Message +CMGR ---------------------------------------------------------------------------------------------------- |
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122 |
Send Message +CMGS----------------------------------------------------------------------------------------------------- |
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123 |
Send Message from Storage +CMSS----------------------------------------------------------------------------------- |
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©2006 BenQ Corporation. |
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Confidential Property |
AT Command User Manual |
iii |
Version: 1.7.7 – 20/09/2006 |
Write Message to Memory +CMGW------------------------------------------------------------------------------------- |
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125 |
2.3 Commands specified by ITU-T Rec. V25ter as by GSM Rec. 07.07 -------------- |
125 |
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2.3.1 Generic TA control commands ------------------------------------------------------------------------ |
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125 |
Repeating a command line (A/)------------------------------------------------------------------------------------------- |
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125 |
Reset to default configuration (Z)----------------------------------------------------------------------------------------- |
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126 |
Set to factory-defined configuration (&F) ------------------------------------------------------------------------------- |
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127 |
Request identification information (I) ------------------------------------------------------------------------------------ |
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128 |
Request manufacturer identification (+GMI)--------------------------------------------------------------------------- |
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129 |
Request model identification (+GMM)----------------------------------------------------------------------------------- |
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130 |
Request revision identification (+GMR)--------------------------------------------------------------------------------- |
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131 |
Request product serial number identification (+GSN)--------------------------------------------------------------- |
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131 |
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Request complete capabilities list (+GCAP)--------------------------------------------------------------------------- |
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132 |
Command line termination character (S3) ----------------------------------------------------------------------------- |
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134 |
Response formatting character (S4)------------------------------------------------------------------------------------- |
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135 |
Command line editing character (S5) ----------------------------------------------------------------------------------- |
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135 |
Command echo (E) ---------------------------------------------------------------------------------------------------------- |
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136 |
Result code suppression (Q) ---------------------------------------------------------------------------------------------- |
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137 |
DCE response format (V) -------------------------------------------------------------------------------------------------- |
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138 |
Result code selection and call progress monitoring control (X) -------------------------------------------------- |
140 |
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Circuit 109 (Received line signal detector) behavior (&C) --------------------------------------------------------- |
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141 |
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Circuit 108 (Data terminal ready) behavior (&D)---------------------------------------------------------------------- |
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142 |
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Fixed DTE rate (+IPR) ------------------------------------------------------------------------------------------------------ |
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143 |
DTE-DCE character framing (+ICF) ------------------------------------------------------------------------------------- |
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144 |
DTE-DCE local flow control (+IFC) -------------------------------------------------------------------------------------- |
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146 |
DTE-DCE local rate reporting (+ILRR)---------------------------------------------------------------------------------- |
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148 |
2.3.2 Call Control commands and response -------------------------------------------------------------- |
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149 |
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Dial (D) -------------------------------------------------------------------------------------------------------------------------- |
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149 |
Wait for dial tone (W) -------------------------------------------------------------------------------------------------------- |
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152 |
Select tone dialling (dial modifier) (T) ----------------------------------------------------------------------------------- |
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152 |
Select pulse dialing (dial modifier) (P) ---------------------------------------------------------------------------------- |
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153 |
Answer (A) --------------------------------------------------------------------------------------------------------------------- |
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154 |
Hook control (H) -------------------------------------------------------------------------------------------------------------- |
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155 |
Automatic answer (S0)------------------------------------------------------------------------------------------------------ |
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156 |
Monitor speaker loudness (L) --------------------------------------------------------------------------------------------- |
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157 |
2.3.3 Data Compression commands ------------------------------------------------------------------------ |
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158 |
Data compression (DS) ----------------------------------------------------------------------------------------------------- |
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158 |
©2006 BenQ Corporation. |
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Confidential Property |
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AT Command User Manual |
iv |
Version: 1.7.7 20/09/2006 |
Data compression reporting (DR) ---------------------------------------------------------------------------------------- |
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159 |
2.4 Command specified by ITU-T Rec. T.32 |
-------------------------------------------------- 162 |
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2.4.1 Action commands----------------------------------------------------------------------------------------- |
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162 |
Send a page +FDT----------------------------------------------------------------------------------------------------------- |
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162 |
Receive a page +FDR------------------------------------------------------------------------------------------------------- |
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163 |
Terminate a session +FKS------------------------------------------------------------------------------------------------- |
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164 |
Initialize facsimile parameters +FIP ------------------------------------------------------------------------------------- |
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165 |
2.4.2 DCE Responses ------------------------------------------------------------------------------------------ |
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165 |
Facsimile Connection +FCO----------------------------------------------------------------------------------------------- |
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165 |
Report DCS Frame Information +FCS ---------------------------------------------------------------------------------- |
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166 |
Report DTS Frame Information +FTC ---------------------------------------------------------------------------------- |
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168 |
Report DIS Frame Information +FIS------------------------------------------------------------------------------------- |
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169 |
Remote Polling Indication +FPO ----------------------------------------------------------------------------------------- |
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169 |
Report Remote ID +FTI----------------------------------------------------------------------------------------------------- |
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170 |
Report Remote ID +FPI----------------------------------------------------------------------------------------------------- |
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171 |
Report Remote ID +FCI----------------------------------------------------------------------------------------------------- |
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171 |
Report NSC Frames +FNC ------------------------------------------------------------------------------------------------ |
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172 |
Report NSF Frames +FNF ------------------------------------------------------------------------------------------------- |
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173 |
Report NSS Frames +FNS------------------------------------------------------------------------------------------------- |
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173 |
Report Password +FPW ---------------------------------------------------------------------------------------------------- |
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174 |
Report Destination Subaddress +FSA ---------------------------------------------------------------------------------- |
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175 |
Report Polling Address +FPA --------------------------------------------------------------------------------------------- |
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175 |
Report T.30 Phase C Page Reception +FPS ------------------------------------------------------------------------- |
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176 |
Post Page Messages Response +FET --------------------------------------------------------------------------------- |
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177 |
Transition to Voice +FVO--------------------------------------------------------------------------------------------------- |
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178 |
Call Termination Status +FHS -------------------------------------------------------------------------------------------- |
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178 |
Report Transmit HDLC Frames +FHT ---------------------------------------------------------------------------------- |
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181 |
Report Received HDLC Frames +FHR --------------------------------------------------------------------------------- |
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182 |
2.4.3 Service Commands -------------------------------------------------------------------------------------- |
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183 |
Service Class +FCLASS---------------------------------------------------------------------------------------------------- |
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183 |
DCE Capabilities Parameter +FCC-------------------------------------------------------------------------------------- |
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184 |
Current Session Parameter +FIS----------------------------------------------------------------------------------------- |
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185 |
Current Session Result +FCS--------------------------------------------------------------------------------------------- |
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186 |
Local Facsimile Station ID String +FLI---------------------------------------------------------------------------------- |
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186 |
Local polling ID String +FPI------------------------------------------------------------------------------------------------ |
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187 |
Non-Standard Frame FIF Octet String +FNS ------------------------------------------------------------------------- |
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188 |
Indicate Document to Poll +FLP ------------------------------------------------------------------------------------------ |
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189 |
©2006 BenQ Corporation. |
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Confidential Property |
AT Command User Manual |
v |
Version: 1.7.7 – 20/09/2006 |
Request to Poll +FSP ------------------------------------------------------------------------------------------------------- |
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190 |
Capability to Receive +FCR ----------------------------------------------------------------------------------------------- |
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190 |
HDLC Frame Reporting +FBU -------------------------------------------------------------------------------------------- |
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191 |
Negotiation Reporting +FNR ---------------------------------------------------------------------------------------------- |
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192 |
Address and Polling Capabilities +FAP--------------------------------------------------------------------------------- |
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193 |
Address and Polling Frames/Subaddress +FSA --------------------------------------------------------------------- |
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193 |
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Address and Polling Frames/Polling Address +FPA ---------------------------------------------------------------- |
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194 |
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Address and Polling Frames/Password +FPW ----------------------------------------------------------------------- |
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195 |
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Procedure Interrupt Enable +FIE ----------------------------------------------------------------------------------------- |
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196 |
Page Status +FPS ----------------------------------------------------------------------------------------------------------- |
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196 |
Copy Quality Checking +FCQ --------------------------------------------------------------------------------------------- |
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198 |
Receive quality Thresholds +FRQ --------------------------------------------------------------------------------------- |
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199 |
Adaptive Answer +FAA ----------------------------------------------------------------------------------------------------- |
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199 |
DTE Phase C Response Timeout +FCT ------------------------------------------------------------------------------- |
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200 |
Call Termination Status +FHS -------------------------------------------------------------------------------------------- |
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201 |
ECM Retry Count +FRY ---------------------------------------------------------------------------------------------------- |
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201 |
Minimum Phase C Speed +FMS ----------------------------------------------------------------------------------------- |
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202 |
Inactivity Timeout +FIT------------------------------------------------------------------------------------------------------ |
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203 |
Minimum Phase C Speed +FMS ----------------------------------------------------------------------------------------- |
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204 |
Report Buffer Size +FBS --------------------------------------------------------------------------------------------------- |
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204 |
Packet Protocol Control +FPP -------------------------------------------------------------------------------------------- |
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205 |
Data Bit Order +FBO -------------------------------------------------------------------------------------------------------- |
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205 |
Phase C Received EOL Alignment +FEA------------------------------------------------------------------------------ |
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206 |
Image Data Format Conversion +FFC---------------------------------------------------------------------------------- |
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207 |
Modem ID +FMI--------------------------------------------------------------------------------------------------------------- |
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208 |
Model ID +FMM--------------------------------------------------------------------------------------------------------------- |
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208 |
Revision ID +FMR------------------------------------------------------------------------------------------------------------ |
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209 |
Flow Control +FLO ----------------------------------------------------------------------------------------------------------- |
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209 |
2.4.4 Examples (WinFax Pro)--------------------------------------------------------------------------------- |
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210 |
DCE Initialization ------------------------------------------------------------------------------------------------------------- |
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210 |
Send One Page --------------------------------------------------------------------------------------------------------------- |
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210 |
Receive One Page ----------------------------------------------------------------------------------------------------------- |
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211 |
2.5 GPRS related commands---------------------------------------------------------------------- |
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213 |
2.5.1 Define PDP Context +CGDCONT -------------------------------------------------------------------- |
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213 |
2.5.2 Quality of Service Profile (Request) +CGQREQ-------------------------------------------------- |
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215 |
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2.5.3 Quality of Service Profile (Minimum acceptable) +CGQMIN ---------------------------------- |
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©2006 BenQ Corporation. |
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Confidential Property |
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AT Command User Manual |
vi |
Version: 1.7.7 20/09/2006 |
2.5.4 GPRS attach or detach +CGATT--------------------------------------------------------------------- |
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220 |
2.5.5 PDP context activate or deactivate +CGACT |
------------------------------------------------------ |
221 |
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2.5.6 Enter data state +CGDATA ---------------------------------------------------------------------------- |
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223 |
2.5.7 Show PDP address +CGPADDR--------------------------------------------------------------------- |
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225 |
2.5.8 Automatic response to a network request for -------PDP context activation +CGAUTO |
227 |
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2.5.9 Manual response to a network request for PDP -------------context activation +CGANS |
229 |
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2.5.10 GPRS mobile station class +CGCLASS (GPRS -----------------------------------------only) |
231 |
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2.5.11 Packet Domain event reporting +CGEREP ------------------------------------------------------ |
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233 |
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2.5.12 RS network registration status +CGREG --------------------------------------------------------- |
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235 |
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2.5.13 Select service for MO SMS messages +CGSMS----------------------------------------------- |
237 |
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2.5.14 Request GPRS service ‘D’---------------------------------------------------------------------------- |
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238 |
2.5.15 Automatic response to a network request for ---------------PDP context activation ‘S0’ |
240 |
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2.5.16 Manual acceptance of a network request for -----------------PDP context activation ‘A’ |
241 |
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2.5.17 Manual rejection of a network request for PDP ---------------------context activation ‘H’ |
242 |
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2.6 Module-specific AT Commands ------------------------------------------------------------- |
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243 |
2.6.1 Power Off $POWEROFF ------------------------------------------------------------------------------- |
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243 |
2.6.2 Periodic Signal Quality Report $CSQ---------------------------------------------------------------- |
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243 |
2.6.3 Audio Path $AUPATH ----------------------------------------------------------------------------------- |
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244 |
2.6.4 Audio Gain $AUGAIN------------------------------------------------------------------------------------ |
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246 |
2.6.5 Audio Mute $AUMUTE ---------------------------------------------------------------------------------- |
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247 |
2.6.6 Audio Volume $AUVOL --------------------------------------------------------------------------------- |
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248 |
2.6.7 Audio AEC $AUAEC ------------------------------------------------------------------------------------- |
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249 |
2.6.8 Audio Downlink FIR $AUFIR--------------------------------------------------------------------------- |
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251 |
2.6.9 Audio Uplink FIR $UPFIR ------------------------------------------------------------------------------ |
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252 |
2.6.10 Audio VAD $AUVAD ----------------------------------------------------------------------------------- |
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253 |
2.6.11 Audio ABS $AUABS------------------------------------------------------------------------------------ |
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254 |
2.6.12 Audio CONTFLT $AUCONTFLT -------------------------------------------------------------------- |
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255 |
2.6.13 Audio AUATT $AUATT -------------------------------------------------------------------------------- |
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256 |
2.6.14 Audio SMOOTH $AUSMOOTH --------------------------------------------------------------------- |
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257 |
2.6.15 Audio LEVELMAX $AULEVELMAX---------------------------------------------------------------- |
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258 |
2.6.16 Audio FIL $AUFIL --------------------------------------------------------------------------------------- |
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259 |
2.6.17 Audio MUT $AUMUT----------------------------------------------------------------------------------- |
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260 |
2.6.18 Audio Extra Gain $EXGAIN -------------------------------------------------------------------------- |
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261 |
2.6.19 Audio Output Bias $OPBIAS ------------------------------------------------------------------------- |
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262 |
2.6.20 SIM Ready Notification $SRN------------------------------------------------------------------------ |
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263 |
2.6.21 I/O12 Setting $VCD------------------------------------------------------------------------------------- |
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264 |
2.6.22 Set duration to clip data on incoming call $TRING --------------------------------------------- |
265 |
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©2006 BenQ Corporation. |
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Confidential Property |
|
AT Command User Manual |
vii |
Version: 1.7.7 – 20/09/2006 |
2.6.23 Convert UNICODE to GB2312 $UNI2GB--------------------------------------------------------- |
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266 |
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2.6.24 Convert GB2312 to UNICODE $GB2UNI--------------------------------------------------------- |
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266 |
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2.6.25 Play a call tone +GDT---------------------------------------------------------------------------------- |
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267 |
2.6.26 Hardware power off command $HRST ------------------------------------------------------------ |
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268 |
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2.6.27 Disable Deep Sleep Mode $NOSLEEP ----------------------------------------------------------- |
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269 |
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2.6.28 Low Voltage Detection $LVD ------------------------------------------------------------------------ |
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269 |
2.6.29 Select SIM Type Command $SIMTYPEOPT ---------------------------------------------------- |
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271 |
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2.7 Proprietary AT Commands-------------------------------------------------------------------- |
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273 |
2.7.1 Call progress information %CPI----------------------------------------------------------------------- |
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273 |
2.7.2 Dynamic Multiband: %BAND -------------------------------------------------------------------------- |
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278 |
2.7.3 GPRS Attach/Detach Mode: %CGAATT ----------------------------------------------------------- |
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278 |
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2.7.4 Flash Memory Check $FSCHK ----------------------------------------------------------------------- |
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279 |
2.7.5 Play Tone on Loud Speaker $CLSL ----------------------------------------------------------------- |
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280 |
2.7.6 Play Tone on Speaker $CSSL ------------------------------------------------------------------------ |
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281 |
2.7.7 Get PIN1, PIN2, PUK1, PUK2 remaining number %PVRF ------------------------------------ |
282 |
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2.7.8 SIM Authentication $SIMAUTH ----------------------------------------------------------------------- |
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282 |
2.7.9 RTC DATE $DATE --------------------------------------------------------------------------------------- |
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282 |
2.7.10 RTC Time $TIME---------------------------------------------------------------------------------------- |
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283 |
2.7.11 Green LED Setting $GLED --------------------------------------------------------------------------- |
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284 |
2.7.12 SIM card test $SIMTEST------------------------------------------------------------------------------ |
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285 |
2.8 M2M: Machine to Machine -------------------------------------------------------------------- |
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287 |
2.8.1 PCO string for context activation %CGPCO ------------------------------------------------------- |
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287 |
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2.8.2 TCP/IP Timeout for M2M packet $TIMEOUT------------------------------------------------------ |
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287 |
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2.8.3 TCP/IP Remote destination Server information $DESTINFO --------------------------------- |
288 |
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2.8.4 Dial-up M2M (TPC/IP) ----------------------------------------------------------------------------------- |
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289 |
2.8.5 EXAMPLE -------------------------------------------------------------------------------------------------- |
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290 |
2.9 STK: SIM Application Toolkit----------------------------------------------------------------- |
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291 |
2.9.1 Configuration for SIM application toolkit %SATC------------------------------------------------- |
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291 |
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2.9.2 Set SAT set & response format %SATM ----------------------------------------------------------- |
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292 |
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2.9.3 Send SAT envelope command %SATE ------------------------------------------------------------ |
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292 |
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2.9.4 Send SAT command response %SATR ------------------------------------------------------------ |
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294 |
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2.9.5 SAT command notify %SATN ------------------------------------------------------------------------- |
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296 |
2.9.6 SAT command response %SATI --------------------------------------------------------------------- |
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297 |
2.9.7 Terminate SAT command or session %SATT ---------------------------------------------------- |
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301 |
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©2006 BenQ Corporation. |
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Confidential Property |
|
AT Command User Manual |
viii |
Version: 1.7.7 20/09/2006 |
2.9.8 EXAMPLE -------------------------------------------------------------------------------------------------- |
301 |
2.10 ME Lock ------------------------------------------------------------------------------------------- |
304 |
2.10.1 Read/Write Personalization file---------------------------------------------------------------------- |
304 |
Description --------------------------------------------------------------------------------------------------------------------- |
305 |
Defined values ---------------------------------------------------------------------------------------------------------------- |
305 |
Examples ----------------------------------------------------------------------------------------------------------------------- |
306 |
2.11 Error Message----------------------------------------------------------------------------------- |
307 |
2.11.1 Mobile Equipment error result code +CME ERROR: <unsolicited><p> ------------------ |
307 |
2.11.2 Message Service Failure Result Code +CMS ERROR: <unsolicited><p>--------------- |
309 |
2.11.3 Extended Error result code +EXT ERROR: <unsolicited><p> ------------------------------ |
311 |
2.11.4 UMTS specific cause values for call control +CEER: <unsolicited><p> ------------------ |
312 |
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©2006 BenQ Corporation. |
Confidential Property |
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AT Command User Manual |
ix Version: 1.7.7 – 20/09/2006 |
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M32 / M32A / M22 / M23 AT Command User Manual Revision History
Version |
Content |
Author |
Date |
1.0 |
Official Release |
Andy T Huang |
02/12/2003 |
1.1 |
Add +VGT, +VGR, +CLSL, |
Andy T Huang |
24/12/2003 |
|
Add AT$AUPATH=4,1 AT$AUPATH=5,1 |
|
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1.2 |
Merge M32, M32A, M22 user manual |
Jamie CW Wang |
06/01/2004 |
1.3 |
Add AT+WDTMF, $SRN, $VCD, $TRING |
Jamie CW Wang |
09/02/2004 |
|
Add AT$UNI2GB, $GB2UNI |
Eason Liu |
13/02/2004 |
|
Add AT+GDT, modify AT+CMGR |
Ken Chang |
03/03/2004 |
1.4 |
Add AT$AUVAD, $AUABS, $AUFIR |
William Hsieh |
25/03/2004 |
1.5 |
Add AT$HSRT, modify $UNI2GB, $GB2UNI |
Kelvin Chan, |
02/04/2004 |
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|
Jamie CW Wang |
|
1.6.0 |
Add AT$AUFIR, AT$AUVAD, AT$AUABS, |
William Hsieh |
28/05/2004 |
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AT$AUCONTFLT, AT$AUATT, |
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AT$AUSMOOTH, AT$AULEVELMAX, |
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AT$AUFIL, AT$AUMUT |
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1.70 |
Add AT$NOSLEEP. Modify AT+CIMI, +GNC, |
Jamie CW Wang |
19/07/2004 |
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+WDTMF, +CNUM, +COPS, +VTS, |
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$POWEROFF, |
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1.7.1 |
Modify +CMS ERROR Code |
Jamie CW Wang |
03/08/2004 |
1.7.2 |
Modify +CIMI, +CNUM |
Jamie CW Wang |
09/09/2004 |
1.7.3 |
Modify AT+FCLASS. Add M2M and STK |
Jamie CW Wang |
21/06/2004 |
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commands |
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1.7.4 |
Add AT+CTZU, $EXGAIN, $OPBIAS, $UPFIR, |
Jamie CW Wang |
16/08/2005 |
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$LVD and $SIMTEST. |
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Add ME Lock commands. |
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Add +EXT ERROR result code. |
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1.7.5 |
Modify AT+CMUX? and AT+CR only for CSD |
Jamie CW Wang |
14/10/2005 |
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(data call) |
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1.7.6 |
Modify AT+FLO=1 to AT+FLO=2. |
Jamie CW Wang |
02/01/2006 |
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Add +CEER information |
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Add to support M23. |
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1.7.7 |
Add $SIMTYPEOPT |
Yahan Hsieh |
20/09/2006 |
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©2006 BenQ Corporation. |
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AT Command User Manual |
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Version: 1.7.7 – 20/09/2006 |
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1. Introduction
1.1 Introduction to Interface between TE and MS
In order to communicate each other between TE and MS, we must use AT commands. Figure 1.1 illustrates the interface. In section 2, we will divide the content into ten subsections. They are about SIM, list management, mobility management, call control, supplementary service, short message, cell broadcast, base-band and the other service.
AT COMMAND
TE |
MS |
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Figure 1.1 |
Explanation |
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ME |
Mobile equipment |
MS |
Mobile station. Basically, a mobile station is mobile |
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equipment with a SIM card. |
TE |
Terminal Equipment that is the same as the controller in |
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this case. |
Getting started
For testing AT commands, the MS can be connected to any computer environment, as long as it has a V.24/V.28 serial interface. The commands can be issued with, for example, HyperTerminal in Microsoft Windows or other emulator programs.
Syntax description
The section gives a brief description of the syntax used for the command set. The MS may echo characters received, depending on the setting of the command E. As a default, echo is enabled, and characters are echoed at the same rate, parity, and format as received.
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The character defined by parameter S5 (default, BS, IRA 8) is interpreted as request from the TE to delete the previous character.
<CR> |
Carriage return character, whose value is specified by |
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command S3, default IRA 13. |
<LF> |
Line feed character, whose value is specified by |
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command S4, default IRA 10. |
<…> |
The name enclosed in angle brackets is a syntactical |
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element. The brackets do not appear in the command |
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line. |
[…] |
Strings enclosed in square brackets are optional items |
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(sub-parameters). The brackets do not appear in the |
command line.
Other characters, including ‘?’,’=’, parentheses, etc, appear in commands and response as written.
AT command syntax
A command line is made up of three elements: the prefix, the body and the termination character. The command line prefix consists of the characters ‘AT’.
MS supports a set of commands referred to as basic syntax commands, and a set of extended syntax commands, the latter prefixed with a plus sign (+).
Basic syntax command
The format of basic syntax commands, except for the command D, is as follows:
<name>[<value>]
Example: |
ATV1<CR> (set text form result codes) |
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<CR><LF>OK<CR><LF>(response) |
Extended syntax command |
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+<name>[=<value>] |
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Example: |
AT+CMUT=0<CR>( the representation of signal strength) |
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<CR><LF>OK<CR><LF>(response) |
Test command syntax |
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+<name>=? |
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Example: |
ATS3=?<CR>(show supported S3 values) |
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<CR><LF>S3: (0-127)<CR><LF> |
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<CR><LF>OK<CR><LF> |
Read command syntax
+<name>?
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Example: |
AT+CACM?<CR>(show current accumulated call meter value) |
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<CR><LF>+CACM: ”0”<CR><LF>(response) |
<CR><LF>OK<CR><LF>
If the indicated name is not recognized, an Error code is issued.
AT response syntax
The default response is text mode that is shown below. See the command V for further details. The format of a response is as follows:
<CR><LF>[<response>]<CR><LF> The <response> can be:
Basic format result code, such as OK.
Extended syntax result code, prefixed with a plus sign (+) : +<name>: <value>
The result codes are separate by commas if it’s included several values. The <value> followed by the colon is separated by a space. It is also possible that result codes have no value. Unlike basic format result codes, extended syntax result codes have no numeric equivalent, and are always issued in alphabetic form.
There are two types of result code responses:
Final result code
A final result code indicates to the TE that execution of the command is completed and another command may be issued.
If you typed an implemented AT command, you should get the result code OK.
If you typed an AT command that was not implemented, or which had the wrong parameter or syntax, you will get the result code ERROR or else, for example, +CME ERROR followed by an error code.
Unsolicited result code
Unsolicited result codes, such as RING, indicate the occurrence of an event not directly associated with a command being issued from TE.
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1.2 Initial the Test Environment
Initial the HyperTerminal.
-Start HyperTerminal -Name a new connection -Select the connection port
-Initial the connection port with 115200 bps and none flow control
Initial the MS.
-Put the SIM card into ME and power on the ME. -Start all of AT Commands with “AT+CFUN=1” -Camp on the cell with “AT+COPS=0”
1.3 How to Handle SMS messages
This section gives examples of the AT commands for sending and receiving SMS (Short Messages Service) messages.
Whatever the destination of the SMS message, the message is always sent via a Service Center (SC). One of the SC’s jobs, among others, is to forward SMS messages to the destination, or save the SMS until the receiving MS becomes available in the GSM network. The message can be stored at the SC up to a maximum time period decided by the sender. Also the message is “time stamped” at the SC and its contents are interpreted according to choices made by the sender.
The conclusion of this is that an SMS message, along with other information decided upon by the sender, always contains 2 addresses. First the Service Center Address (SCA), and then the destination address. Also, other useful information is added at the SC.
Setting Service Center Address (SCA)
The service center address is usually stored on the SIM card, but it can be set manually by using the AT command AT+CSCA. Note that the SCA must be given in the international phone number format.
Format of an SMS message
It is important to realize that SMS messages could be sent in two modes: text mode and PDU mode, which is described in detail in the GSM specifications 3GPP 27.005, 3GPP 23.040 and 3GPP 23.038.
Because text mode is followed the format of input parameters, it is clear to execute the commands. We now focus on the introduction of PDU mode.
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What is PDU mode? First a PDU is a Service Center Address (SCA) followed by a Transport Protocol Data Unit (TPDU). There are several formats of TPDU, but we now only use two forms here:
SMS-SUBMIT TPDU |
Outgoing SMS messages “submitted” to the SM from the |
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originating MS. |
SMS-DELIVER TPDU |
Incoming SMS messages “delivered” by the SC to final |
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destination MS. |
Therefore we have the following general format of an SMS message:
PDU=SCA+TPDU
The TPDU format is a hexadecimal encoded binary format, which means that 2 hexadecimal digits represent a byte or an octet. In general there is a header part of the TPDU, containing the control information, and the follows user data, which can be any type of information (default 7-bit GSM alphabet, 8-bit ISO 8859-1 alphabet or even 8-bit data).
Let’s start with some examples of PDU SMS messages using an SMS-SUBMIT type TPDU. For simplicity’s sake we will send a text message that reads “TEST”, using the default GSM 7-bit alphabet.
Here is the message written out in full:
0011000B916407861582F50000A704D4E2940A
Equivalently, we could write this as:
07916407058099F911000B916407861582F50000A704D4E2940A
These two have one difference, and that is how we have chosen to describe the SCA. In the first SMS we use:
00 |
This is a valid SCA with a length equal to zero. Therefore we are |
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using the default SCA given by the SIM card, or as given by the |
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AT command AT+CSCA. |
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07916407058099F9 |
Here is the SCA hex encoded binary. The first octet (07) is a |
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length indicator, in this case there are 7 octets to follow. The |
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second octet (91) tells us about the numbering plan and type of |
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number of the coming address. In this case the 91 says that the |
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address is in international phone number format. Then follows the |
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actual service center address (6407058099F9). Every pair of |
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digits is swap, that there is an odd number of digits in the phone number and therefore, a half byte of fill digits is required at the end (hence the hexadecimal F9). The exact meaning of all the octets and fields in the SCA address is described in detail in 3GPP 23.040.
Let’s analyze the message by breaking it down into its component parts:
11 This octet contains many 1-bit and 2-bit fields that are described in detail in GSM 03.40. These include:
-TP-MTI : message type indicator
-TP-RD : more messages waiting indicator
-TP-VPF : validity period format
-TP-SRR : status report request flag
-TP-UDHI : user data header indicator flag
-TP-RP : reply path setting flag
00 |
This octet is only associated with the 8-bit field TP-MR and is |
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basically a message reference number, which can be chosen by |
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the user. Here we set the message reference number to zero |
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(00HEX). |
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0B916407861582F5 |
This is the destination address (TP-DA). The format of the |
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address field is given in detail in 3GPP 23.040. It is similar to the |
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format of the SCA, but now it refers to the phone number of the |
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receiving MS. The first octet (0B) is a phone number length |
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indicator. In this case the phone number of the destination MS |
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consists of 11 digits. The second octet (91) is the numbering |
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plan and type of number of the coming address. The address is |
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in international phone number format. Then follows the mobile |
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number with every pair of digits in reverse order, and because |
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we have an odd number of digits a half octet of fill bits are |
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required (hence the F5HEX). |
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00 |
This is the protocol ID (TP-PID) which refers to a possible higher |
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level protocol being used or indicates inter-working with certain |
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types of telematic devices. This can usually be left set to zero. |
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00 |
This is the data coding scheme field (TP-DCS) that is described |
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in detail in 3GPP 23.038. Basically this octet tells us what kind of |
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user data is being sent. For instance, if we are using a 7-bit or |
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8-bit alphabet, or we are sending 8-bit data. It also informs the |
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receiving MS about the class of the SMS message, which tells it |
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how to handle and store the incoming SMS message. |
A7 |
This is the validity period (TP-VP). The validity period is how |
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long the SC will store the SMS, waiting for the receiving MS to |
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come in contact with the GSM network. If the SMS is not |
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received by the destination MS within this time, then the |
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message will be discarded. 3GPP 23.040 describes this field in |
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detail. |
04 |
TP-UDL. This is the length of the user data. It is given in septets, |
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if TP-DCS describes the message as using the default 7-bit |
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GSM alphabet, or octets otherwise. |
D4E2940A |
Finally we come to the user data (TP-UD). This is 4-septets |
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long, defined above in TP-DCS and TP-UDL. The message |
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reads “TEST”. Note the one character is not represented by one |
octet, but by a septet (7-bits), and therefore it can be quite complicated to decipher a GSM text SMS by looking at the PDU. 3GPP specification 23.038 describes in detail how the 7-bit GSM alphabet works and how to convert from the hexadecimal to the characters. You may know that one can send 160 characters in an SMS message. This is only possible in 140 bytes using a 7-bit alphabet
Before we finish we should also take a look at the TPDU of SMS-DELIVER type. This is the PDU one would see when reading an SMS that has been sent to the module.
07916407058099F9040B916407861582F500009910702123040004D4E2940A
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The TPDU breaks down as follows: |
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04 |
TP-MTI, TP-MMS, TP_SRI, TP-UDHI, TP-RP |
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0B916407861582f5 |
This is the originating address (TP-OA) |
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00 |
TP-PID |
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00 |
TP-DCS |
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99107021230400 |
This is the service center time stamp. Every pair of digits are |
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reversed. This time stamp reads, in octets from left to right: the |
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date 990107 (year, month, day), the time 123240 (hours, |
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minutes, seconds). Finally the last octet is a reference for the |
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difference in time between local time and GMT. |
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04 |
TP-UDL |
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D4E2940A |
TP-UD |
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Sending SMS messages
The AT command to use is AT+CMGS. Notice that this is the length of the TPDU and not the PDU, so it does not include the SCA. The length of the message is 4 octets and the message reads “TEST”.
Example1:
A user would like to send a GSM 7 bit alphabet text “TEST” to number “0910123456”, he may use
AT+CMGS=17<CR> >0011000A8190012143650000A704D4E2940A<CTRL-Z> +CMGS:122 ( depends on the MS)
OK
Reading SMS message from storage
To read SMS messages from storage, the AT commands AT+CMGL and AT+CMGR should be used.
Example1:
AT+CMGR=1 +CMGR: 1,,23
07916407058099F9040B916407950303F100008921222140140004D4E2940A OK
Example2:
AT+CMGL=4 The 4 here means “all messages”. +CMGL: 1,1,23
07916407058099F9040B916407950303F100008921222140140004D4E2940A +CMGL: 2,1,26 07916407058099F9040B916407950303F10000892122216000000841E190583411E91 +CMGL: 3,1,27
07916407058099F9040B916407950303F10000892122217064000941E19058341E9149 OK
Deleting SMS messages
To delete an SMS message from the selected <mem1>, use the AT+CMGD command.
Example1:
AT+CMGD=1
OK
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Memory management
Once both SM are full, then the module will receive no new messages and SMS messages will be buffered in the Service Center until the following happens:
zThe validity period of the message expires. The validity period is set by TP-VP.
zA message is deleted by using AT+CMGD. An empty memory position becomes
available and the module can receive a new message.
There are other ways to control the storage of SMS messages. In the TPDU field, TP-DCS, one can set the class of the SMS message. Basically the different SMS classes are as follows:
Classless SMS |
(TP-DCS=00hex). This is usually the type sent by a mobile telephone. |
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They are stored in the available memory. |
Class 0 SMS |
(TP-DCS=F0hex). These are not stored anywhere, but are sent |
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directly to the telephone display. Since there is no display one can |
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forward the messages to the TE by means of the AT command |
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setting AT+CNMI=3,2 |
Class 1 SMS |
(TP-DCS=F1hex). These are directed specifically to ME if there is a |
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memory storage available, otherwise it will be stored in SM. |
Class 2 SMS |
(TP-DCS=F2hex). These are directed specifically to SM. |
Class 3 SMS |
(TP-DCS=F3hex). These messages shall normally be transferred to |
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the terminal equipment or application, if requested to do so, This is |
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controlled by the AT command AT+CNMI |
For a deeper explanation and more information regarding the different SMS classed and their use see the 3GPP specification 23.038.
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2. Implemented AT commands for MS
2.1 Commands specified by GSM REC.27.07
2.1.1 General Commands
Request manufacturer identification +CGMI
Table: +CGMI parameter command syntax
Command |
Possible response(s) |
+CGMI |
<manufacturer> |
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+CME ERROR: <err> |
Description
Read handset or model’s manufacturer’s ID.
Defined values
<manufacturer> : total number of characters shall not exceed 2048.
Informative examples
-Initial the HyperTerminal -Initial the MS
-AT Command AT+CGMI<CR> BenQ
Request model identification +CGMM
Table: +CGMM parameter command syntax
Command |
Possible response(s) |
+CGMM |
<model> |
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+CME ERROR: <err> |
Description
Read model information which determined by ME manufacturer.
Defined values
<model id>: string type
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Informative examples
-Initial the HyperTerminal -Initial the MS without SIM card -AT Command
AT+CGMM <CR> <model>
Request revision identification +CGMR
Table: +CGMR parameter command syntax
Command |
Possible response(s) |
+CGMR |
<revision> |
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+CME ERROR: <err> |
Description
Read revision of ME. It may include software and hardware revision.
Defined values
<revision >: information text
Informative examples
-Initial the HyperTerminal -Initial the MS without SIM card -AT Command
AT+CGMR<CR> SW ver: 1.0.9 HW ver: 1.0 FS ver: 0.4.8.0
Build Date: 2003/10/24
Build Time: 14:17:57
Request product serial number identification +CGSN
Table: +CGSN parameter command syntax
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+CGSN |
<sn> |
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+CME ERROR: <err>
Description
Read serial number identification which determined by ME manufacturer.
Defined values
<sn >: total number of characters shall not exceed 2048 characters.
Informative examples
-Initial the HyperTerminal -Initial the MS without SIM card -AT Command
AT+CGSN<CR>
IMEI: 44601919750759-5 IMEISV: 44601919750759-00
OK
Select TE character set +CSCS
Table: +CSCS parameter command syntax
Command |
Possible response(s) |
+CSCS=[<chset>] |
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+CSCS? |
+CSCS: <chset> |
+CSCS=? |
+CSCS: (list of supported <chset>s) |
Description
Set command informs TA of which character set “<chset>” is used by the TE. TA is then able to convert character strings correctly between TE and ME character sets.
When TA-TE interface is set to 8-bit operation and used TE alphabet is 7 bit, the highest bit shall be set to zero.
Read command returns the current setting and test command displays conversion schemes implemented in the TA.
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Defined values
<chset>: string type
Command |
Possible response(s) |
“GSM”(default) |
GSM default alphabet |
“HEX” |
Character strings consist only of hexadecimal numbers |
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from 00 to FF;e.g. “032FE6” equals three 8-bit |
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characters with decimal values 3,47 and 230;no |
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conversions to the original ME character set shall be |
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done. |
“IRA” |
International reference alphabet |
“UCS2” |
16-bit universal multiple-octet coded character set; |
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UCS2 character strings are converted to hexadecimal |
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numbers from 0000 to FFFF. ; e.g. “004100620063” |
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equals three 16-bit characters with decimal values 65,98 |
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and 99. |
“8859-1” |
ISO 8859 Latin 1 character set |
“PCCP437” |
PC character set Code Page 437 |
“PCDN” |
PC Danish/Norwegian character set |
Informative examples
-Initial the HyperTerminal -Initial the MS without SIM card -AT Command
1.
AT+CSCS=? <CR>
+CSCS: "GSM","IRA","PCCP437","PCDN","8859-1","HEX","UCS2" OK
2.
AT+CSCS= “GSM” +CSCS: “GSM” OK
AT+CSCS? <CR> +CSCS: “GSM” OK
3.
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AT+CSCS=”UCS2” OK
AT+CPBS? +CPBS: "SM",7,100 OK
AT+CPBR=1,3
+CPBR: 1,"12345",129,"00520061006E00640079" +CPBR: 2,"2",129,"004300610020"
+CPBR: 3,"3",129,"00450020" AT+CSCS=”IRA”
OK AT+CPBR=1,3
+CPBR: 1,"12345",129,"Randy" +CPBR: 2,"2",129,"Ca " +CPBR: 3,"3",129,"E "
OK
Request international mobile subscriber identity +CIMI
Table: +CIMI parameter command syntax
Command |
Possible response(s) |
+CIMI |
<IMSI> |
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OK |
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+CME ERROR:<err> |
Description
Execution command causes the TA to return <IMSI>, which is intended to permit the TE to identify the individual SIM that is attached to ME.
Defined values
<IMSI>: International Mobile Subscriber Identity (string without double quotes)
Informative examples
-Initial the HyperTerminal -Initial the MS
-AT Command
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AT+CIMI
466880100493652
OK
Multiplexing mode +CMUX
Table: +CMUX parameter command syntax
Command |
Possible response(s) |
+CMUX=<mode>[,<subse |
+CME ERROR:<err> |
t>[,<port_speed>[,<N1>[, |
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<T1>[,<N2>[,<T2>[,<T3>[, |
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+CMUX? |
OK |
+CMUX=? |
+CMUX: (list of supported <mode>s), (list of |
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supported <subset>s), (list of supported |
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<port_speed>s), (list of supported <N1>s), (list |
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of supported <T1>s), (list of supported |
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<N2>s), (list of supported <T2>s), (list of |
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supported <T3>s), (list of supported <k>s) |
Description
This command is used to enable/disable the GSM 07.10 multiplexing protocol control channel. Refer to subclause 9.2 for possible <err> values. The AT commands sets parameters for the Control Channel. If the parameters are left out, the default value is used.
Read command returns the current mode and the settings.
Test command returns the supported modes and parameters.
It is recommended that the ME/TA/TE should autobaud to the +CMUX command up to and including an interface speed of 9600 bits/s.
The OK or +CME ERROR: <err> response is returned at the speed of the +CMUX command prior to entering <mode>.
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It is recommended that whenever the multiplexer control channel is released the ME/TA/TE should assume an interface rate of up to and including 9600 bits/s for auto baud purposes irrespective of any previous higher speed having been selected.
If a +CMUX command is issued whilst in any multiplexer mode then that +CMUX command shall be ignored and the ME/TA shall return an +CME ERROR: <err> response.
Defined values
<operation> ( multiplexer Transparency Mechanism) 0 Basic option (not support in current version) 1 Advanced option
<subset>:
This parameter defines the way in which the multiplexer control channel is set up. A virtual channel may subsequently be set up differently but in the absence of any negotiation for the setting of a virtual channel, the virtual channel shall be set up according to the control channel <subset> setting.
0UIH frames used only.
1UI frames used only.
2I frames used only. Default value:0
<port_speed> (transmission rate):
19600 bits/s
219200 bits/s
338400 bits/s
457600 bits/s
5115200 bits/s
6230400 bits/s
<N1> (maximum frame size): 1-32768
Default Value: 31 (64 if Advanced option is used)
<T1> (acknowledgement timer in units of ten milliseconds): 1-255, where 10 is default (100 ms)
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AT Command User Manual |
17 Version: 1.7.7 – 20/09/2006 |
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<N2> (maximum number of re-transmissions): 0-100, where 3 is default
<T2> (response timer for the multiplexer control channel in units of ten milliseconds): 2-255, where 30 is default (300ms)
NOTE: T2 must be longer than T1.
<T3> (wake up response timer in seconds): 1-255, where 10 is default
<k> (window size, for advanced operation with Error Recovery options): 1-7, where 2 is default
Informative examples
-Initial the HyperTerminal -Initial the MS
-AT Command
AT+CMUX=?
+CMUX: (1),(0),(1-5),(10-100),(1-255),(0-100),(2-255),(1-255),(1-7) OK
Mux Example
Request: 92/8/3 05:38:36.812492864 (+300.4480146000 seconds)
41 54 45 30 51 30 56 31 0D |
ATE0Q0V1 |
Normal AT command mode at initial
Answer: 92/8/3 05:38:36.822507464 (+0.0100146000 seconds)
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0D 0A 4F 4B 0D 0A |
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..OK.. |
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The response of ATE0Q0V1 |
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Request: 92/8/3 05:38:37.583617064 (+0.5908614000 seconds) |
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41 54 2B 43 4D 55 58 3D 31 2C 30 2C 35 0D |
AT+CMUX=1,0,5. |
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©2006 BenQ Corporation. |
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Confidential Property |
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AT Command User Manual |
18 |
Version: 1.7.7 20/09/2006 |
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