Вот еще:

AT+CPBR=?: Read Phonebook Entries test command
AT+CPBS="ME"
AT+CPBR=: Read Phonebook selected Entries
AT+CNUM: subscriber number
AT+CBC: battery charge level
AT+CSQ: signal quality level
AT+CKPD=: keypad control
AT+CCLK?: get current data&time
AT+CSCS=IRA: select character set - international reference alphabet
AT+CSCS=?: List of supported character sets
AT+CSCS=GSM:
AT+CSCS=HEX:
AT+CSCS=UCS2: 16-bit universal multiple-octet coded character set
AT+CMGL=: check sms
ATI1
ATI2
ATI3
ATI4
ATI5
AT+MDBAD?
AT+MODE=0
AT+MODE=1
AT+MODE=2
AT+MODE=3
AT+MODE=4
AT+MODE=8
AT+MODE=12
AT+CMOD= : Call mode +CMOD
AT+CMOD=?: List of supported call modes
AT+CMOD?: current call mode
AT+CBST=x,0,y : The following commands are described more fully in the ETSI specification GSM 07.07.x takes the following values: 0 Autobauding (non-transparent only).1 300 bps V.21. 2 1200 bps V.22. 3 1200/75 bps V.23. 4 2400 bps V.22bis. 5 2400 bps V.26ter. 6 4800 bps V.32. 7 9600 bps V.32 65 300 bps V.110. 66 1200 bps V.110. 68 2400 bps V.110. 70 4800 bps V.110. 71 9600 bps V.110. y takes the following values: 0 Transparent connection (default). 1 Non-transparent connection (uses RLP).
AT+CBST?: Query the bearer service type.