BAIC — BAIC AT Commands User Manual: Serial Interface, Commands, and More (EN)

AT Commands User Manual 7 Network Service Commands optional alphanumeric string associated with ; used character set is selected by setting +CSCS. string type phone number of format specified by . type of address octet in integer format (129 or 145). corresponding to setting +CBST. service related to phone number as follows: − 0: asynchronous modem. − 1: synchronous modem. − 2: PAD access (asynchronous). − 3: Packet access (synchronous). − 4: voice. − 5: FAX information transfer capability as follows: − 0: 3.1 kHZ. − 1: UDI. 25 7.1 Subscriber number +CNUM Command syntax Description AT+CNUM This action command returns the MSISDNs related to this subscriber.

If the subscriber has different MSISDN for different services, each MSISDN is returned in a separate line. +CNUM: “Mario Rossi”,”+39320821708”,145 +CNUM: “ABCD . AAA”,”123456789012”,129 +CNUM: “”,”” OK or CME ERROR: 7.2 Signal quality +CSQ Command syntax Description AT+CSQ This execution command returns signal strength indication and channel bit error rate from the ME. The radio signal strength will be also used to build and display the indicator “signal” i.e. signal quality in the response code +CIND and in the unsolicited result code +CIEV. The following mapping of “signal” to exists: “signal” 0 =28 (>= -57 dBm) +CSQ: 2,5 OK or CME ERROR: Test command AT+CSQ=? +CSQ: (0-31,99),(0-7,99) i.e.

list of supported s and list of supported s OK