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LTE Standard Module Series
EC200x Series AT Commands Manual
EC200x Series_AT_Commands_Manual 1 / 167
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GENERAL NOTES
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Copyright © Quectel Wireless Solutions Co., Ltd. 2020. All rights reserved.

LTE Standard Module Series
EC200x Series AT Commands Manual
EC200x Series_AT_Commands_Manual 2 / 167
About the Document
Revision History
Version
Date
Author
Description
1.0
2020-04-24
Jensen FANG/
Adolph WANG
Initial

LTE Standard Module Series
EC200x Series AT Commands Manual
EC200x Series_AT_Commands_Manual 3 / 167
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

LTE Standard Module Series
EC200x Series AT Commands Manual
EC200x Series_AT_Commands_Manual 4 / 167
3.4. AT+IPR Set TE-TA Fixed Local Rate ................................................................................... 32
4 Status Control Commands ............................................................................................................... 34
4.1. AT+CPAS Query Mobile Activity Status ............................................................................... 34
4.2. AT+CEER Report Extended Error ........................................................................................ 35
4.3. AT+QCFG Configure Extended Settings .............................................................................. 36
4.3.1. AT+QCFG="gprsattach" Configure GPRS Attach Mode ............................................ 37
4.3.2. AT+QCFG="nwscanmode" Configure Network Search Mode ................................... 37
4.3.3. AT+QCFG="nwscanseq" Configure Network Searching Sequence .......................... 38
4.3.4. AT+QCFG="roamservice" Configure Roam Service .................................................. 39
4.3.5. AT+QCFG="servicedomain" Configure Service Domain ........................................... 40
4.3.6. AT+QCFG="band" Configure Band ............................................................................ 41
4.3.7. AT+QCFG="urc/ri/other" Specify RI Behavior When Other URCs are Presented ..... 42
4.3.8. AT+QCFG="urcdelay" Set Delay Time Of URC Indication ........................................ 43
4.3.9. AT+QCFG="urc/cache" Enable/Disable URC Cache Function .................................. 44
4.4. AT+QINDCFG Control URC Indication ................................................................................. 45
5 (U)SIM Related Commands ............................................................................................................... 48
5.1. AT+CIMI Request International Mobile Subscriber Identity (IMSI) ...................................... 48
5.2. AT+CLCK Facility Lock ......................................................................................................... 49
5.3. AT+CPIN Enter PIN .............................................................................................................. 51
5.4. AT+CPWD Change Password .............................................................................................. 53
5.5. AT+CSIM Generic (U)SIM Access ....................................................................................... 54
5.6. AT+CRSM Restricted (U)SIM Access .................................................................................. 55
5.7. AT+QCCID Show ICCID ....................................................................................................... 56
5.8. AT+QPINC Display PIN Remainder Counter ....................................................................... 57
5.9. AT+QINISTAT Query Initialization Status of (U)SIM Card ................................................... 58
5.10. AT+QSIMDET (U)SIM Card Detection ................................................................................. 58
5.11. AT+QSIMSTAT (U)SIM Card Insertion Status Report ......................................................... 59
6 Network Service Commands ............................................................................................................ 62
6.1. AT+COPS Operator Selection .............................................................................................. 62
6.2. AT+CREG Network Registration Status ............................................................................... 64
6.3. AT+CSQ Signal Quality Report ............................................................................................ 66
6.4. AT+CPOL Preferred Operator List ....................................................................................... 67
6.5. AT+COPN Read Operator Names ....................................................................................... 69
6.6. AT+CTZU Automatic Time Zone Update.............................................................................. 69
6.7. AT+CTZR Time Zone Reporting ........................................................................................... 70
6.8. AT+QLTS Obtain the Latest Time Synchronized Through Network .................................... 72
6.9. AT+QNWINFO Query Network Information ......................................................................... 73
7 Phonebook Commands ..................................................................................................................... 75
7.1. AT+CNUM Subscriber Number ............................................................................................ 75
7.2. AT+CPBF Find Phonebook Entries ...................................................................................... 76
7.3. AT+CPBR Read Phonebook Entries .................................................................................... 77
7.4. AT+CPBS Select Phonebook Memory Storage ................................................................... 78
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