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LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 104 / 231
7.17. AT+CRC Set Cellular Result Codes for Incoming Call Indication
The command controls whether or not to use the extended format of incoming call indication. When it is
enabled, an incoming call is indicated to the TE with unsolicited result code
+CRING: <type>
instead of
the normal
RING
.
Parameter
<serv>
ASYNC
Asynchronous transparent
SYNC
Synchronous transparent
REL ASYNC
Asynchronous non-transparent
REL SYNC
Synchronous non-transparent
GPRS
GPRS
AT+CRC Set Cellular Result Codes for Incoming Call Indication
Test Command
AT+CRC=?
Response
+CRC:
(list of supported
<mode>
s)
OK
Read Command
AT+CRC?
Response
+CRC: <mode>
OK
Write Command
AT+CRC=[<mode>]
Response
TA controls whether or not the extended format of incoming
call indication is used.
OK
Maximum Response Time
300ms
Reference
3GPP TS 27.007
<mode>
0
Disable extended format
1
Enable extended format
<type>
ASYNC
Asynchronous transparent
SYNC
Synchronous transparent
REL ASYNC
Asynchronous non-transparent
REL SYNC
Synchronous non-transparent
FAX
Facsimile
VOICE
Voice