3.4.17. AT#VSIMVER - Get SIM version 346
3.4.18. AT+ICCID - Read ICCID 347
3.4.19. AT#SIMINCFG - SIMIN Pin Configuration 348
3.4.20. AT#SIMSELGPIOCFG - SIM Select 351
3.4.21. AT#FWAUTOSIM - Automatic Switch of Firmware Image by
SIM 352
3.4.22. AT#FIRSTNET - APN Automatic Switch by SIM 354
SIM Toolkit 356
3.5.1. AT#STIA - SIM/USIM Toolkit Interface Action 356
3.5.2. AT#STGI - SIM Toolkit Get Information 363
3.5.3. AT#STSR - SIM Toolkit Send Response 375
SMS & CB 379
3.6.1. AT+CSMS - Select Message Service 379
3.6.2. AT+CPMS - Preferred Message Storage 382
3.6.3. AT+CMGF - Message Format 385
3.6.4. AT+CSCA - Service Center Address 387
3.6.5. AT+CSMP - Set Text Mode Parameters 389
3.6.6. AT+CSDH - Show Text Mode Parameters 391
3.6.7. AT+CSAS - Save Settings 393
3.6.8. AT+CRES - Restore Settings 395
3.6.9. AT+CMMS - More Message to Send 397
3.6.10. AT+CNMI - New Message Indications to Terminal Equipment
399
3.6.11. AT+CNMA - New Message Acknowledgement 407
3.6.12. AT+CMGL - List Messages 412
3.6.13. AT+CMGR - Read Message 418
3.6.14. AT+CMGS - Send Short Message 424
3.6.15. AT+CMSS - Send Message from Storage 429
3.6.16. AT+CMGW - Write Short Message to Memory 431
3.6.17. AT+CMGD - Delete Message 437
3.6.18. AT+CGSMS - Select Service for MO SMS Messages 439
3.6.19. AT#SMSMODE - SMS Commands Operation Mode 441
3.6.20. AT#SMSRETRY - SMS Retry 443