this SIM5218 AT command manual - Cooking Hacks

SIM5218 Serial AT Command Set
Write command controls whether or not the extended format of incoming call indication or GPRS
network request for PDP context activation is used. When enabled, an incoming call is indicated to
the TE with unsolicited result code “+CRING: ” instead of the normal RING.
Test command returns values supported by the TA as a compound value.
SIM PIN References
YES 3GPP TS 27.007
Syntax
Test Command
AT+CRC=
Read Command
AT+CRC
Write Command
AT+CRC=
Execution Command
AT+CRC
Responses
+CRC: (list of supported s)
OK
Responses
+CRC:
OK
Responses
OK
Responses
Set default value:
OK
Defined values
0 – disable extended format
1 – enable extended format
ASYNC
asynchronous transparent
SYNC
synchronous transparent
REL ASYNC asynchronous non-transparent
REL SYNC synchronous non-transparent
FAX
facsimile
VOICE
normal voice
VOICE/XXX voice followed by data(XXX is ASYNC, SYNC, REL ASYNC or REL
SYNC)
ALT VOICE/XXX alternating voice/data, voice first
ALT XXX/VOICE alternating voice/data, data first
ALT FAX/VOICE alternating voice/fax, fax first
GPRS
GPRS network request for PDP context activation
Examples
SIM5218_Serial _ATC_V1.36 57
5/15/2012