Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 60 23.06.2010
OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameter
<IMSI> International Mobile Subscriber Identity (string without
double quotes)
Reference
GSM 07.07 [13]
Note
3.2.16 AT+CLCC List Current Calls of ME
AT+CLCC List Current Calls of ME
Test Command
AT+CLCC=?
Response
+CLCC: (0,1)
OK
Write Command
AT+CLCC=<n>
Response
OK
Parameter
<n> 0 don’t report a list of current calls of ME automatically
when the current call status changes.
1 report a list of current calls of ME automatically when
the current call status changes.
Execution
Command
AT+CLCC
Response
TA returns a list of current calls of ME.
Note: If Command succeeds but no calls are available, no information
response is sent to TE.
[+CLCC: <id1>,<dir>,<stat>,<mode>,<mpty>[,<number>,<type
>,<alphaID>][<CR><LF>+CLCC:
<id2>,<dir>,<stat>,<mode>,<mpty>
[,<number>,<type>,<alphaID>][...]]]
OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameters
<idx> 1..7 Call identification number
This number can be used in +CHLD command operations
<dir> 0 mobile originated (MO) call