Chapter 4: Using the Commands
December 31, 2007 AT Commands Reference Manual 4-17
Conference Call
atd051632601; //Dialing the first member of the conference
OK
OK
AT+CHLD=2 //Call hold, switch command
OK //Active call switched to hold
atd035659260; //Calling the second member of the conference
OK
OK
(Dual call state: one call on hold; 2nd is active.)
AT+CHLD=3 //Call link command
OK //Held call is linked to active call
(Active conference of two calls)
AT+CLCC //Verifying call state through CLCC
//(Verifying call state is optional.)
+CLCC: 1,0,0,0,1,"051632601",129,""
+CLCC: 2,0,0,0,1,"035659260",129,""
ath //Hang up the conference call
NO CARRIER //First member dropped
NO CARRIER //Second member dropped
OK
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