AT Commands Set

SIM5215_SIM5216 AT Command Manual
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
AT+CRC=1
OK
AT+CRC?
+CRC: 1
OK
4.18 AT+VTS DTMF and tone generation
Description
The command allows the transmission of DTMF tones and arbitrary tones which cause the Mobile
Switching Center (MSC) to transmit tones to a remote subscriber. The command can only be used
in voice mode of operation (active voice call).
NOTE The END event of voice call will terminate the transmission of tones, and as an operator
option, the tone may be ceased after a pre-determined time whether or not tone duration has been
reached.
SIM PIN References
YES 3GPP TS 27.007
Syntax
SIM5215_SIM5216_AT Command Manual_V1.13 47
1/13/2011