LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 3 / 231
Contents
About the Document ................................................................................................................................ 2
Contents .................................................................................................................................................... 3
Table Index ............................................................................................................................................... 8
1 Introduction ....................................................................................................................................... 9
1.1. Scope of the Document ........................................................................................................... 9
1.2. AT Command Syntax .............................................................................................................. 9
1.3. Supported Character Sets ..................................................................................................... 10
1.4. AT Command Interface ......................................................................................................... 10
1.5. Unsolicited Result Code ........................................................................................................ 10
1.6. Turn off Procedure .................................................................................................................11
2 General Commands ........................................................................................................................ 12
2.1. ATI Display Product Identification Information .................................................................... 12
2.2. AT+GMI Request Manufacturer Identification ..................................................................... 13
2.3. AT+GMM Request TA Model Identification ......................................................................... 13
2.4. AT+GMR Request TA Revision Identification of Software Release .................................... 14
2.5. AT+CGMI Request Manufacturer Identification .................................................................. 14
2.6. AT+CGMM Request Model Identification ............................................................................ 15
2.7. AT+CGMR Request TA Revision Identification of Software Release .................................. 15
2.8. AT+GSN Request International Mobile Equipment Identity (IMEI) ..................................... 16
2.9. AT+CGSN Request Product Serial Number Identification .................................................. 17
2.10. AT&F Set all Current Parameters to Manufacturer Defaults ............................................... 17
2.11. AT&V Display Current Configuration .................................................................................. 18
2.12. AT&W Store Current Parameters to User Defined Profile ................................................... 19
2.13. ATZ Set all Current Parameters to User Defined Profile ..................................................... 19
2.14. ATQ Set Result Code Presentation Mode .......................................................................... 20
2.15. ATV TA Response Format .................................................................................................. 20
2.16. ATE Set Command Echo Mode .......................................................................................... 22
2.17. A/ Repeat Previous Command Line ................................................................................... 22
2.18. ATS3 Set Command Line Termination Character ............................................................... 23
2.19. ATS4 Set Response Formatting Character ........................................................................ 24
2.20. ATS5 Set Command Line Editing Character ...................................................................... 24
2.21. ATX Set CONNECT Result Code Format and Monitor Call Progress ................................ 25
2.22. AT+CFUN Set Phone Functionality .................................................................................... 26
2.23. AT+CMEE Error Message Format ...................................................................................... 27
2.24. AT+CSCS Select TE Character Set .................................................................................... 28
2.25. AT+QURCCFG Configure URC Indication Option .............................................................. 29
3 Serial Interface Control Commands .............................................................................................. 31
3.1. AT&C Set DCD Function Mode .......................................................................................... 31
3.2. AT&D Set DTR Function Mode ........................................................................................... 31
3.3. AT+IFC Set TE-TA Local Data Flow Control ....................................................................... 32