Chapter 3: AT Commands Reference
April 15, 2008 G24-L AT Commands Reference Manual 3-23
OK
Examples of +CCWA set command - network interrogation
AT+CCWA=1,2 //Class parameter is considered as 7
+CCWA: 1,1 //Call waiting is active for class 1, voice
+CCWA: 2,0 //Call waiting is not active for class 2, data
+CCWA: 4,0 //Call waiting is not active for class 4, fax
OK
AT+CCWA=1,2,2 //Class parameter is 2
+CCWA: 2,0 //Call waiting is not active for class 2, data
+CCWA: 4,0 //Call waiting is not active for class 4, fax
OK
AT+CCWA=1,1
OK //Enable the call waiting feature in the network, and in the G24-L
Example +CCWA indication
atd9311234567; //Originate a voice call
OK
OK //Voice call connected
(...conversation...)
(… call waiting indication received by the G24-L …)
+CCWA: "+358317654321",145,1,"Bob"
+CCWA: "+358317654321",145,1,"Bob"
AT+CHLD=0 //Release the waiting call
OK
NO CARRIER
AT+CRC=1 //RING indication is not relevant to CCWA indication
OK
(…waiting call…, caller restricted to its CLI presentation (used AT+CLIR)…)
+CCWA: "",128,1,"",1 //CLI is restricted, but call type recognized as voice
+CCWA: "",128,1,"",1
+CHLD, Call Related Supplementary Services Command
This command controls the Call Hold and Multiparty Conversation services. This command
manipulates voice calls only.
Set Command
The Set command allows the control of the following call related services:
• Call HOLD: A call can be temporarily disconnected from the G24-L, but the connection is
retained by the network.
• MTPY (Multi party) Conversation: Conference calls.
The network does not reserve more than one traffic channel for a mobile station, therefore the
G24-L can have only one call on hold at a time.
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