User guide

Developers guidelines | AT commands
93 June 2010
+CRING Call mode indication
<type> Description
ASYNC Asynchronous transparent
SYNC Synchronous transparent
REL ASYNC Asynchronous non-transparent
REL SYNC Synchronous non-transparent
Description: When enabled by using AT+CRC, an incoming call is indicated with
+CRING instead of +RING.
Unsolicited result
code: +CRING: <type>
Parameter:
<type>:
<type> Description
ASYNC Asynchronous transparent
SYNC Synchronous transparent
REL ASYNC Asynchronous non-transparent
FAX Facsimile
VOICE Normal voice
VOICE/XXX Voice followed by data (“XXX” is SYNC, ASYNC,
REL ASYNC or REL SYNC)
ALT VOICE/XXX Alternating voice/data, voice first
ALT XXX/VOICE Alternating voice/data, data first
ALT VOICE/FAX Alternating voice/fax, voice first
ALT FAX/VOICE Alternating voice/fax, fax first