Specifications
AT Command Set for L55 Platform 2003-11-21
Copyright Siemens AG 2003 All Rights Reserved Page 5 of 131
2 Software interface
2.1 Overview of the supported AT command set
This section provides overviews of the supported sets of AT commands, separate for each type of
command set.
Table 2-1 lists all the supported GSM 07.07 AT commands in alphabetical order, and indicates the
type of command as defined in the ETSI GSM 07.07 standard:
07.07 command Function Type of command Page
AT+CACM Accumulated call meter Mobile equipment
control
33
AT+CALM Alert sound mode Mobile equipment
control
33
AT+CAMM Accumulated call meter maximum Mobile equipment
control
34
AT+CAOC Advice of charge Network service 18
AT+CBC Battery charge Mobile equipment
control
34
AT+CBST Select bearer service type Modem command 69
AT+CCFC Call forwarding Network service 19
AT+CCLK Clock Mobile equipment
control
34
AT+CCWA Call waiting Network service 20
AT+CEER Query the reason for disconnection of last call Call control 16
AT+CGACT PDP context activate or deactivate GPRS 49
AT+CGANS Manual response to a network request for PDP
context activation
GPRS 49
AT+CGATT GPRS attach or detach GPRS 50
AT+CGAUTO Auto response to a network request for PDP
context activation
GPRS 50
AT+CGCLASS GPRS mobile station class GPRS 51
AT+CGDATA Enter data state GPRS 51
AT+CGDCONT Define PDP Context GPRS 52
AT+CGEREP GPRS event reporting GPRS 53
AT+CGMI Issue manufacturer ID code General 14
AT+CGMM Issue model ID code General 14
AT+CGMR Output the GSM telephone version General 14
AT+CGPADDR Show PDP address GPRS 56
AT+CGQMIN Quality of Service Profile (Minimum acceptable) GPRS 54
AT+CGQREQ Quality of Service Profile (Requested) GPRS 55
AT+CGREG GPRS network registration status GPRS 57
AT+CGSMS Select service for MO SMS messages GPRS 58
AT+CGSN Output the serial number (IMEI) General 14
AT+CHLD Call hold and multiparty Network service 21
AT+CHUP Terminate call Call control 16
AT+CIMI Output of IMSI General 15
AT+CIND Indicator Control Mobile equipment
control
35
AT+CKPD Keypad control General 15
AT+CLCC List Current Calls Network service 22
AT+CLCK Switch locking on and off Network service 23
AT+CLIP Display telephone number of calling party Network service 25
AT+CLIR Select Incognito Mode (Call Line Identification
Restriction)
Call control 26