Multi-Tech Systems GPRS (MTMMC-G) Benutzerhandbuch

Chapter 10 – Supplementary Services Commands  

Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 

88 

 

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) 

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 

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