Quectel EC25&EC21 AT Owner's manual

Type
Owner's manual
EC25&EC21
AT Commands Manual
LTE Module Series
Rev. EC25&EC21_AT_Commands_Manual_V1.1
Date: 2017-01-18
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LTE Module Series
EC25&EC21 AT Commands Manual
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Our aim is to provide customers with timely and comprehensive service. For any
assistance, please contact our company headquarters:
Quectel Wireless Solutions Co., Ltd.
Office 501, Building 13, No.99, Tianzhou Road, Shanghai, China, 200233
Tel: +86 21 5108 6236
Or our local office. For more information, please visit:
http://www.quectel.com/support/salesupport.aspx
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GENERAL NOTES
QUECTEL OFFERS THE INFORMATION AS A SERVICE TO ITS CUSTOMERS. THE INFORMATION
PROVIDED IS BASED UPON CUSTOMERSREQUIREMENTS. QUECTEL MAKES EVERY EFFORT
TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE. QUECTEL DOES NOT
MAKE ANY WARRANTY AS TO THE INFORMATION CONTAINED HEREIN, AND DOES NOT ACCEPT
ANY LIABILITY FOR ANY INJURY, LOSS OR DAMAGE OF ANY KIND INCURRED BY USE OF OR
RELIANCE UPON THE INFORMATION. ALL INFORMATION SUPPLIED HEREIN IS SUBJECT TO
CHANGE WITHOUT PRIOR NOTICE.
COPYRIGHT
THE INFORMATION CONTAINED HERE IS PROPRIETARY TECHNICAL INFORMATION OF
QUECTEL CO., LTD. TRANSMITTING, REPRODUCTION, DISSEMINATION AND EDITING OF THIS
DOCUMENT AS WELL AS UTILIZATION OF THE CONTENT ARE FORBIDDEN WITHOUT
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OR DESIGN.
Copyright © Quectel Wireless Solutions Co., Ltd. 2017. All rights reserved.
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About the Document
History
Revision
Date
Author
Description
1.0
2016-05-30
James CAI/
Bonnie ZHAO
Initial
1.1
2017-01-18
Ivan ZHANG/
Sophie ZHU
1. Added the following AT commands:
+QRIR/+QINDCFG/+QINISTAT/+QLTS/+QSPN/
+QHUP/+QEEC/+QSIDET/+QMIC/+QRXGAIN/
+QIIC/+QADC
2. Added AT+QCFG commands shown as below:
"urc/ri/ring"/"urc/ri/smsincoming"/"urc/ri/other"/"risig
naltype"/"urc/delay"/"urc/cache"
3. Updated the description for <Act> parameter in
AT+COPS command: added the value 100 which
indicates CDMA network
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Contents
About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
Table Index ................................................................................................................................................... 7
1 Introduction .......................................................................................................................................... 8
1.1. Scope of the Document ............................................................................................................. 8
1.2. AT Command Syntax ................................................................................................................. 8
1.3. Supported Character Sets ......................................................................................................... 9
1.4. AT Command Interface .............................................................................................................. 9
1.5. Unsolicited Result Code ............................................................................................................ 9
1.6. Turn off Procedure ................................................................................................................... 10
2 General Commands ........................................................................................................................... 11
2.1. ATI Display Product Identification Information ...................................................................... 11
2.2. AT+GMI Request Manufacturer Identification ...................................................................... 12
2.3. AT+GMM Request TA Model Identification ........................................................................... 12
2.4. AT+GMR Request TA Revision Identification of Software Release ..................................... 13
2.5. AT+CGMI Request Manufacturer Identification .................................................................... 13
2.6. AT+CGMM Request Model Identification ............................................................................. 14
2.7. AT+CGMR Request TA Revision Identification of Software Release ................................... 14
2.8. AT+GSN Request International Mobile Equipment Identity (IMEI) ...................................... 15
2.9. AT+CGSN Request Product Serial Number Identification ................................................... 16
2.10. AT&F Set all Current Parameters to Manufacturer Defaults ................................................ 16
2.11. AT&V Display Current Configuration .................................................................................... 17
2.12. AT&W Store Current Parameters to User Defined Profile .................................................... 18
2.13. ATZ Set all Current Parameters to User Defined Profile ...................................................... 18
2.14. ATQ Set Result Code Presentation Mode ............................................................................ 19
2.15. ATV TA Response Format .................................................................................................... 19
2.16. ATE Set Command Echo Mode ............................................................................................ 21
2.17. A/ Repeat Previous Command Line ..................................................................................... 21
2.18. ATS3 Set Command Line Termination Character ................................................................. 22
2.19. ATS4 Set Response Formatting Character .......................................................................... 23
2.20. ATS5 Set Command Line Editing Character ........................................................................ 23
2.21. ATX Set CONNECT Result Code Format and Monitor Call Progress ................................. 24
2.22. AT+CFUN Set Phone Functionality ...................................................................................... 25
2.23. AT+CMEE Error Message Format ........................................................................................ 26
2.24. AT+CSCS Select TE Character Set ...................................................................................... 27
2.25. AT+QURCCFG Configure URC Indication Option ............................................................... 28
3 Serial Interface Control Commands ................................................................................................ 30
3.1. AT&C Set DCD Function Mode ............................................................................................ 30
3.2. AT&D Set DTR Function Mode ............................................................................................. 30
3.3. AT+IFC Set TE-TA Local Data Flow Control ......................................................................... 31
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3.4. AT+ICF Set TE-TA Control Character Framing .................................................................... 32
3.5. AT+IPR Set TE-TA Fixed Local Rate .................................................................................... 33
3.6. AT+QRIR Restore RI Behavior to Inactive ........................................................................... 34
4 Status Control Commands ............................................................................................................... 36
4.1. AT+CPAS Mobile Equipment Activity Status ......................................................................... 36
4.2. AT+CEER Extended Error Report ........................................................................................ 37
4.3. AT+QCFG Extended Configuration Settings ........................................................................ 38
4.3.1. AT+QCFG="gprsattach" GPRS Attach Mode Configuration ....................................... 39
4.3.2. AT+QCFG="nwscanmode" Network Search Mode Configuration.............................. 40
4.3.3. AT+QCFG="nwscanseq" Network Searching Sequence Configuration ..................... 41
4.3.4. AT+QCFG="roamservice" Roam Service Configuration ............................................ 42
4.3.5. AT+QCFG="servicedomain" Service Domain Configuration ...................................... 42
4.3.6. AT+QCFG="band" Band Configuration ...................................................................... 43
4.3.7. AT+QCFG="hsdpacat" HSDPA Category Configuration............................................. 45
4.3.8. AT+QCFG="hsupacat" HSUPA Category Configuration ............................................ 45
4.3.9. AT+QCFG="rrc" RRC Release Version Configuration ............................................... 46
4.3.10. AT+QCFG="sgsn" UE SGSN Release Version Configuration ................................... 47
4.3.11. AT+QCFG="msc" UE MSC Release Version Configuration ....................................... 48
4.3.12. AT+QCFG="PDP/DuplicateChk" Establish Multi PDNs with the Same APN ............. 48
4.3.13. AT+QCFG="TDSCSQ" Set TDSCDMA RSSI Range ................................................. 49
4.3.14. AT+QCFG="urc/ri/ring" RI Behavior When RING URC is Presented ......................... 50
4.3.15. AT+QCFG="urc/ri/smsincoming" RI Behavior When Incoming SMS URCs are
Presented ...................................................................................................................................... 51
4.3.16. AT+QCFG="urc/ri/other" RI Behavior When Other URCs are Presented .................. 52
4.3.17. AT+QCFG="risignaltype" RI Signal Output Carrier .................................................... 53
4.3.18. AT+QCFG="urc/delay" Delay URC Indication ............................................................ 54
4.3.19. AT+QCFG="urc/cache" URC Cache Function ............................................................ 54
4.4. AT+QINDCFG URC Indication Configuration ....................................................................... 56
5 SIM Related Commands .................................................................................................................... 58
5.1. AT+CIMI Request International Mobile Subscriber Identity (IMSI) ....................................... 58
5.2. AT+CLCK Facility Lock ......................................................................................................... 59
5.3. AT+CPIN Enter PIN .............................................................................................................. 61
5.4. AT+CPWD Change Password .............................................................................................. 63
5.5. AT+CSIM Generic SIM Access ............................................................................................. 64
5.6. AT+CRSM Restricted SIM Access ........................................................................................ 65
5.7. AT+QCCID Show ICCID ....................................................................................................... 66
5.8. AT+QPINC Display PIN Remainder Counter........................................................................ 67
5.9. AT+QINISTAT Query Initialization Status of SIM Card ......................................................... 67
5.10. AT+QSIMDET SIM Card Detection ....................................................................................... 68
5.11. AT+QSIMSTAT SIM Inserted Status Report ......................................................................... 69
6 Network Service Commands ............................................................................................................ 71
6.1. AT+COPS Operator Selection .............................................................................................. 71
6.2. AT+CREG Network Registration ........................................................................................... 73
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6.3. AT+CSQ Signal Quality Report ............................................................................................. 75
6.4. AT+CPOL Preferred Operator List ........................................................................................ 77
6.5. AT+COPN Read Operator Names ........................................................................................ 78
6.6. AT+CTZU Automatic Time Zone Update .............................................................................. 79
6.7. AT+CTZR Time Zone Reporting ........................................................................................... 80
6.8. AT+QLTS Obtain the Latest Time Synchronized Through Network ..................................... 82
6.9. AT+QNWINFO Query Network Information .......................................................................... 83
6.10. AT+QSPN Display the Name of Registered Network ........................................................... 85
7 Call Related Commands .................................................................................................................... 87
7.1. ATA Answer an Incoming Call ............................................................................................... 87
7.2. ATD Mobile Originated Call to Dial a Number ...................................................................... 88
7.3. ATH Disconnect Existing Connection ................................................................................... 89
7.4. AT+CVHU Voice Hang up Control ........................................................................................ 90
7.5. AT+CHUP Hang up Call ........................................................................................................ 91
7.6. +++ Switch from Data Mode to Command Mode ................................................................. 91
7.7. ATO Switch from Command Mode to Data Mode ................................................................ 92
7.8. ATS0 Set Number of Rings before Automatically Answering Call ........................................ 93
7.9. ATS6 Set Pause before Blind Dialing ................................................................................... 94
7.10. ATS7 Set Number of Seconds to Wait for Connection Completion...................................... 94
7.11. ATS8 Set the Number of Seconds to Wait for Comma Dial Modifier ................................... 95
7.12. ATS10 Set Disconnect Delay after Indicating the Absence of Data Carrier ......................... 95
7.13. AT+CBST Select Bearer Service Type ................................................................................. 96
7.14. AT+CSTA Select Type of Address ........................................................................................ 98
7.15. AT+CLCC List Current Calls of ME....................................................................................... 99
7.16. AT+CR Service Reporting Control ...................................................................................... 100
7.17. AT+CRC Set Cellular Result Codes for Incoming Call Indication ...................................... 101
7.18. AT+CRLP Select Radio Link Protocol Parameter .............................................................. 103
7.19. AT+QECCNUM Configure Emergency Call Numbers ........................................................ 104
7.20. AT+QHUP Hang up Call with a Specific Release Cause ................................................... 106
8 Phonebook Commands ................................................................................................................... 108
8.1. AT+CNUM Subscriber Number ........................................................................................... 108
8.2. AT+CPBF Find Phonebook Entries .................................................................................... 109
8.3. AT+CPBR Read Phonebook Entries .................................................................................. 110
8.4. AT+CPBS Select Phonebook Memory Storage ...................................................................111
8.5. AT+CPBW Write Phonebook Entry ..................................................................................... 112
9 Short Message Service Commands ............................................................................................... 114
9.1. AT+CSMS Select Message Service (Not Effective in CDMA Network) ............................. 114
9.2. AT+CMGF Message Format ............................................................................................... 115
9.3. AT+CSCA Service Center Address (Not Effective in CDMA Network) ............................... 116
9.4. AT+CPMS Preferred Message Storage .............................................................................. 117
9.5. AT+CMGD Delete Message ............................................................................................... 119
9.6. AT+CMGL List Messages ................................................................................................... 120
9.7. AT+CMGR Read Message ................................................................................................. 123
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9.8. AT+CMGS Send Message .................................................................................................. 128
9.9. AT+CMMS More Messages to Send (Not Effective in CDMA Network) ............................ 129
9.10. AT+CMGW Write Message to Memory............................................................................... 130
9.11. AT+CMSS Send Message from Storage ............................................................................ 132
9.12. AT+CNMA New Message Acknowledgement to UE/TE (Not Effective in CDMA Network)134
9.13. AT+CNMI SMS Event Reporting Configuration .................................................................. 136
9.14. AT+CSCB Select Cell Broadcast Message Types (Not Effective in CDMA Network) ........ 138
9.15. AT+CSDH Show SMS Text Mode Parameters (Not Effective in CDMA Network) ............. 139
9.16. AT+CSMP Set SMS Text Mode Parameters (Not Effective in CDMA Network) ................. 140
9.17. AT+QCMGS Send Concatenated Messages ..................................................................... 141
9.18. AT+QCMGR Read Concatenated Messages ..................................................................... 143
9.19. AT+QCSMP Set CDMA SMS Text Mode Parameters ........................................................ 145
9.20. AT+QSMSR Read Message ............................................................................................... 146
9.21. AT+QSMSL List Messages ................................................................................................. 150
10 Packet Domain Commands ............................................................................................................ 154
10.1. AT+CGATT Attachment or Detachment of PS .................................................................... 154
10.2. AT+CGDCONT Define PDP Context .................................................................................. 155
10.3. AT+CGQREQ Quality of Service Profile (Requested) ........................................................ 156
10.4. AT+CGQMIN Quality of Service Profile (Minimum Acceptable) ......................................... 159
10.5. AT+CGEQREQ 3G Quality of Service Profile (Requested) ............................................... 162
10.6. AT+CGEQMIN 3G Quality of Service Profile (Minimum Acceptable) ................................. 166
10.7. AT+CGACT Activate or Deactivate PDP Context ............................................................... 170
10.8. AT+CGDATA Enter Data State ............................................................................................ 171
10.9. AT+CGPADDR Show PDP Address ................................................................................... 172
10.10. AT+CGCLASS GPRS Mobile Station Class ....................................................................... 173
10.11. AT+CGREG Network Registration Status ........................................................................... 174
10.12. AT+CGEREP Packet Domain Event Reporting .................................................................. 176
10.13. AT+CGSMS Select Service for MO SMS Messages .......................................................... 178
10.14. AT+CEREG EPS Network Registration Status ................................................................... 179
10.15. AT+QGDCNT Packet Data Counter ................................................................................... 180
10.16. AT+QAUGDCNT Auto Save Packet Data Counter............................................................. 182
11 Supplementary Service Commands .............................................................................................. 184
11.1. AT+CCFC Call Forwarding Number and Conditions Control ............................................. 184
11.2. AT+CCWA Call Waiting Control .......................................................................................... 186
11.3. AT+CHLD Call Related Supplementary Services ............................................................... 188
11.4. AT+CLIP Calling Line Identification Presentation ............................................................... 190
11.5. AT+CLIR Calling Line Identification Restriction .................................................................. 191
11.6. AT+COLP Connected Line Identification Presentation ....................................................... 192
11.7. AT+CSSN Supplementary Service Notifications ................................................................ 194
11.8. AT+CUSD Unstructured Supplementary Service Data ...................................................... 195
12 Audio Commands ............................................................................................................................ 197
12.1. AT+CLVL Loudspeaker Volume Level Selection ................................................................ 197
12.2. AT+CMUT Mute Control ...................................................................................................... 198
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12.3. AT+QAUDLOOP Enable Audio Loop Test .......................................................................... 198
12.4. AT+VTS DTMF and Tone Generation ................................................................................. 199
12.5. AT+VTD Set Tone Duration................................................................................................. 200
12.6. AT+QAUDMOD Set Audio Mode ........................................................................................ 201
12.7. AT+QDAI Digital Audio Interface Configuration .................................................................. 202
12.8. AT+QEEC Set Echo Cancellation Parameters ................................................................... 204
12.9. AT+QSIDET Set the Side Tone Gain in Current Mode ....................................................... 205
12.10. AT+QMIC Set Uplink Gains of MIC..................................................................................... 205
12.11. AT+QRXGAIN Set Downlink Gains of RX .......................................................................... 206
12.12. AT+QIIC IIC Read & Write .................................................................................................. 207
13 Hardware Related Commands ........................................................................................................ 209
13.1. AT+QPOWD Power off ....................................................................................................... 209
13.2. AT+CCLK Clock .................................................................................................................. 209
13.3. AT+CBC Battery Charge ..................................................................................................... 210
13.4. AT+QADC Read ADC Value ............................................................................................... 211
13.5. AT+QSCLK Configure Whether or Not to Enter into Sleep Mode ...................................... 212
14 Appendix ........................................................................................................................................... 213
14.1. References ............................................................................................................................ 213
14.2. Factory Default Settings Restorable with AT&F .................................................................... 214
14.3. AT Command Settings Storable with AT&W .......................................................................... 216
14.4. AT Command Settings Storable with ATZ ............................................................................. 217
14.5. Summary of CME ERROR Codes ......................................................................................... 218
14.6. Summary of CMS ERROR Codes ......................................................................................... 219
14.7. Summary of URC................................................................................................................... 221
14.8. SMS Character Sets Conversions ......................................................................................... 223
14.9. Release Cause Text List of AT+CEER .................................................................................. 230
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Table Index
TABLE 1: TYPES OF AT COMMANDS AND RESPONSES ............................................................................... 9
TABLE 2: AT&V RESPONSE ............................................................................................................................. 17
TABLE 3: ATV0&ATV1 RESULT CODES NUMERIC EQUIVALENTS AND BRIEF DESCRIPTION ................ 20
TABLE 4: PARAMETER CONFIGURATIONS SUPPORTED BY AT+CBST ..................................................... 97
TABLE 5: DELAY CLASS ................................................................................................................................ 159
TABLE 6: RELATED DOCUMENTS ................................................................................................................ 213
TABLE 7: TERMS AND ABBREVIATIONS ...................................................................................................... 213
TABLE 8: FACTORY DEFAULT SETTINGS RESTORABLE WITH AT&F ...................................................... 214
TABLE 9: AT COMMAND SETTINGS STORABLE WITH AT&W .................................................................... 216
TABLE 10: AT COMMAND SETTINGS STORABLE WITH ATZ ..................................................................... 217
TABLE 11: DIFFERENT CODING SCHEMES OF +CME ERROR: <ERR> ................................................... 218
TABLE 12: DIFFERENT CODING SCHEMES OF +CMS ERROR: <ERR> ................................................... 220
TABLE 13: SUMMARY OF URC ..................................................................................................................... 221
TABLE 14: THE WAY OF SMS TEXT INPUT OR OUTPUT............................................................................ 224
TABLE 15: THE INPUT CONVERSIONS TABLE (DCS=GSM 7 BIT AND AT+CSCS=“GSM”) ...................... 224
TABLE 16: THE OUTPUT CONVERSIONS TABLE (DCS=GSM 7 BIT AND AT+CSCS=“GSM”) .................. 225
TABLE 17: GSM EXTENDED CHARACTERS ................................................................................................ 226
TABLE 18: THE INPUT CONVERSIONS TABLE (DCS=GSM 7 BIT AND AT+CSCS=“IRA”) ........................ 226
TABLE 19: IRA EXTENDED CHARACTERS .................................................................................................. 227
TABLE 20: THE OUTPUT CONVERSIONS TABLE (DCS=GSM 7 BIT AND AT+CSCS=“IRA”) .................... 228
TABLE 21: GSM EXTENDED CHARACTERS ................................................................................................ 229
TABLE 22: RELEASE CAUSE TEXT LIST OF AT+CEER .............................................................................. 230
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1 Introduction
1.1. Scope of the Document
This document presents the AT Commands Set for Quectel cellular engines EC25 & EC21.
1.2. AT Command Syntax
The “AT or at” prefix must be set at the beginning of each command line. To terminate a command line
enter <CR>. Commands are usually followed by a response that includes
<CR><LF><response><CR><LF>”. Throughout this document, only the responses are presented,
<CR><LF>” are omitted intentionally.
The AT Commands Set implemented by EC25 & EC21 is a combination of 3GPP TS 27.007, 3GPP TS
27.005 and ITU-T recommendation V.25ter as well as the AT Commands developed by Quectel.
All these AT commands can be split into three categories syntactically: basic”, S parameter, and
extended”. They are listed as follows:
Basic syntax
These AT commands have the format of AT<x><n>”, or AT&<x><n>”, where <x>is the command, and
<n> is/are the argument(s) for that command. An example of this is ATE<n>”, which tells the DCE
whether received characters should be echoed back to the DTE according to the value of <n>”. “<n>” is
optional and a default will be used if it is missing.
S parameter syntax
These AT commands have the format of ATS<n>=<m>”, where “<n>” is the index of the S register to set,
and “<m>” is the value to assign to it.
Extended syntax
These commands can be operated in several modes, as following table:
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Table 1: Types of AT Commands and Responses
1.3. Supported Character Sets
EC25 & EC21 AT command interface defaults to the GSM character set. EC25 & EC21 modules support
the following character sets:
GSM format
UCS2
IRA
The character set can be configured and interrogated by using the AT+CSCS command (3GPP TS
27.007) and it is defined in 3GPP TS 27.005. The character set affects transmission and reception of SMS
and SMS Cell Broadcast Messages, as well as the entry and display of phone book entries text field.
1.4. AT Command Interface
EC25 & EC21 AT command interface includes two USB ports (USB MODEM port and USB AT port) and
one main UART port. The main UART port and two USB ports support AT command communication and
data transfer.
1.5. Unsolicited Result Code
As an Unsolicited Result Code and a report message, URC is not issued as part of the response related
to an executed AT command. URC is issued by the EC25 & EC21 without being requested by the TE and
it is issued automatically when a certain event occurs. Typical events leading to URCs are incoming calls
(RING), received short messages, high/low voltage alarm, high/low temperature alarm, etc.
Test Command
AT+<x>=?
Read Command
AT+<x>?
Write Command
AT+<x>=<…>
Execution
Command
AT+<x>
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1.6. Turn off Procedure
It is recommended to execute AT+QPOWD command to turn off the module, as it is the safest and best
way. This procedure is realized by letting the module log off from the network and allowing the software to
enter into a secure and safe data state before disconnecting the power supply.
After sending AT+QPOWD, do not enter any other AT commands. The module outputs message
“POWERED DOWN” and sets the STATE pin as low to enter into the shutdown state. In order to avoid
data loss, it is suggested to wait for 1s to switch off the VBAT after the STATUS pin is set as low and the
URC “POWERED DOWN” is outputted. If “POWERED DOWN” has not been received after 65s, the
VBAT shall be switched off compulsorily.
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2 General Commands
2.1. ATI Display Product Identification Information
ATI command delivers a product information text.
Parameter
Example
ATI
Quectel
EC20F
Revision: EC20CEFDR01A01M4G
OK
ATI Display Product Identification Information
Execution Command
ATI
Response
TA issues product information text.
Quectel
EC20F
Revision: <revision>
OK
Maximum Response Time
300ms
Reference
V.25ter
<revision> Revision of software release
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2.2. AT+GMI Request Manufacturer Identification
AT+GMI returns a manufacturer identification text. See also: AT+CGMI.
2.3. AT+GMM Request TA Model Identification
AT+GMM returns a product model identification text. The command is identical with AT+CGMM.
AT+GMI Request Manufacturer Identification
Test Command
AT+GMI=?
Response
OK
Execution Command
AT+GMI
Response
TA reports one or more lines of information text which permit
the user to identify the manufacturer.
Quectel
OK
Maximum Response Time
300ms
Reference
V.25ter
AT+GMM Request TA Model Identification
Test Command
AT+GMM=?
Response
OK
Execution Command
AT+GMM
Response
TA returns a product model identification text.
EC20F
OK
Maximum Response Time
300ms
Reference
V.25ter
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2.4. AT+GMR Request TA Revision Identification of Software Release
AT+GMR delivers a product firmware version identification. The command is identical with AT+CGMR.
Parameter
Example
AT+GMR
EC20CEFDR01A01M4G
OK
2.5. AT+CGMI Request Manufacturer Identification
AT+CGMI returns a manufacturer identification text. See also: AT+GMI.
AT+GMR Request TA Revision Identification of Software Release
Test Command
AT+GMR=?
Response
OK
Execution Command
AT+GMR
Response
TA reports one or more lines of information text which permit
the user to identify the revision of software release.
<revision>
OK
Maximum Response Time
300ms
Reference
V.25ter
<revision> Revision of software release
AT+CGMI Request Manufacturer Identification
Test Command
AT+CGMI=?
Response
OK
Execution Command
AT+CGMI
Response
TA returns manufacturer identification text.
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2.6. AT+CGMM Request Model Identification
AT+CGMM returns a product model identification text. The command is identical with AT+GMM.
2.7. AT+CGMR Request TA Revision Identification of Software Release
AT+CGMR delivers a product firmware version identification. The command is identical with AT+GMR.
OK
Maximum Response Time
300ms
Reference
3GPP TS 27.007
AT+CGMM Request Model Identification
Test Command
AT+CGMM=?
Response
OK
Execution Command
AT+CGMM
Response
TA returns product model identification text.
EC20F
OK
Maximum Response Time
300ms
Reference
3GPP TS 27.007
AT+CGMR Request TA Revision Identification of Software Release
Test Command
AT+CGMR=?
Response
OK
Execution Command
AT+CGMR
Response
TA returns identification text of product software version.
<revision>
OK
Maximum Response Time
300ms
Reference
3GPP TS 27.007
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Parameter
2.8. AT+GSN Request International Mobile Equipment Identity (IMEI)
AT+GSN returns the International Mobile Equipment Identity (IMEI). The command is identical with
AT+CGSN.
Parameter
The serial number (IMEI) varies with the individual ME device.
<revision> Identification text of product software version
AT+GSN Request International Mobile Equipment Identity (IMEI)
Test Command
AT+GSN=?
Response
OK
Execution Command
AT+GSN
Response
TA reports the IMEI (International Mobile Equipment Identity)
number in information text which permits the user to identify
the individual ME device.
<IMEI>
OK
Maximum Response Time
300ms
Reference
V.25ter
<IMEI> IMEI of the telephone
NOTE
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2.9. AT+CGSN Request Product Serial Number Identification
AT+CGSN returns International Mobile Equipment Identity (IMEI).
2.10. AT&F Set all Current Parameters to Manufacturer Defaults
AT&F resets AT command settings to their factory default values.
Parameter
AT+CGSN Request Product Serial Number Identification
Test Command
AT+CGSN=?
Response
OK
Execution Command
AT+CGSN
Response
<IMEI>
OK
Maximum Response Time
300ms
Reference
3GPP TS 27.007
AT&F Set all Current Parameters to Manufacturer Defaults
Execution Command
AT&F[<value>]
Response
TA sets all current parameters to the manufacturer defined
profile. See Table 8: Factory Default Settings Restorable with
AT&F.
OK
Maximum Response Time
300ms
Reference
V.25ter
<value> 0 Set all TA parameters to manufacturer defaults
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2.11. AT&V Display Current Configuration
AT&V displays the current settings of several AT command parameters, including the single-letter AT
command parameters which are not readable otherwise.
Table 2: AT&V Response
AT&V Display Current Configuration
Execution Command
AT&V
Response
TA returns the current parameter setting
See Table 2: AT&V Response
OK
Maximum Response Time
300ms
Reference
V.25ter
AT&V
&C: 1
&D: 2
&F: 0
&W: 0
E: 1
Q: 0
V: 1
X: 4
Z: 0
S0: 0
S3: 13
S4: 10
S5: 8
S6: 2
S7: 0
S8: 2
S10: 15
OK
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2.12. AT&W Store Current Parameters to User Defined Profile
AT&W stores the current AT command settings to a user defined profile in non-volatile memory.
Parameter
2.13. ATZ Set all Current Parameters to User Defined Profile
ATZ restores the current AT command settings to the user defined profile in non-volatile memory, if one
was stored with AT&W before. Any additional AT command on the same command line may be ignored.
Parameter
AT&W Store Current Parameters to User Defined Profile
Execution Command
AT&W[<n>]
Response
TA stores the current parameter settings in the user defined
profile. See Table 9: AT Command Settings Storable with
AT&W.
OK
Maximum Response Time
300ms
Reference
V.25ter
<n> 0 Profile number to store current parameters
ATZ Set all Current Parameters to User Defined Profile
Execution Command
ATZ[<value>]
Response
TA sets all current parameters to the user defined profile. See
Table 10: AT Command Settings Storable with ATZ.
OK
Maximum Response Time
300ms
Reference
V.25ter
<value> 0 Reset to profile number 0
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Quectel EC25&EC21 AT Owner's manual

Type
Owner's manual

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