Multi-Tech Systems MMCModem GPRS (MTMMC-G) - Manual (Page 88)

Chapter 10 – Supplementary Services Commands
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 88
List Current Calls +CLCC
Description: This command returns a list of current calls.
Values: <idx> integer type, call identification as described in GSM 02.30
<dir> direction of the call
0 mobile originated (MO) call
1 mobile terminated (MT) call
<stat> (state of the call):
0 active
1 held
2 dialing (MO call)
3 alerting (MO call)
4 incoming (MT call)
5 waiting (MT call)
<mode> (teleservice):
0 voice
1 data
2 fax
9 unknown
<mpty>
0 call is not one of multiparty (conference) call parties
1 call is one of multiparty (conference) call parties
<number> string type phone number in format specified by <type>
<type>
type of address byte in integer format
<alpha> optional string type alphanumeric representation of <number>
corresponding to the entry found in phonebook. (for UCS2 format see commands examples
+CLIP, +CCWA or +COLP)
Syntax: Command syntax: AT+CLCC
Response syntax: OK (if no calls are available)
Else:
+CLCC: <id1>,<dir>,<stat>,<mode>,<mpty>[,<number>,<type> [<alpha>] ]
[<CR><LF>
+CLCC: <id2>,<dir>,<stat>,<mode>,<mpty>[,<number>,<type>[<alpha>] ] [. . . ] ] ]
<CR><LF>
OK
Command Possible responses
RING
Note: Incoming call
AT+CLCC +CLCC: 1,1,4,0,0,”0146294079”,129
OK
ATA
Note: Answering the call OK
AT+CLCC +CLCC: 1,1,1,0,0,”0146294079”,129
OK
ATD0146299704
Note: Outgoing Call OK
AT+CLCC
Note: Before the phone called is ringing +CLCC: 1,0,2,0,0,”0146294079”,129
OK
AT+CLCC
Note: The phone called is ringing +CLCC: 1,0,3,0,0,”0146294079”,129
OK
AT+CLCC
Note: The call is being answered +CLCC: 1,0,0,0,0,”0146294079”,129
OK