AT Commands Reference
52 98-08901C68-O
4.3.3 Call Control AT Commands
4.3.3.1 D, Dial Command
This command places a FAX/DATA/VOICE call on the current network.
The default call type is a data call (CSD). If the +FCLASS command was used to set the call type to be FAX, then the outgoing
call is a fax call.
There must be an explicit request in order to make a VOICE call. This request bypasses the +FCLASS setting.
If a DATA/FAX call was originated and answered by the remote side, a "CONNECT" notification is sent to the terminal from
the g20, and it moves to the online Data/Fax state (respectively).
For more information about call failure, use the AT+CEER command, described in “+CEER, Extended Error Report” on
page 200.
Note
If there is an active voice call and the terminal sends another ATD voice call command to the g20, the active call is
put on hold and the new number is called.
Command Response/Action
ATD<number>[;] VOICE CALL:
1st response - Voice call place begins
OK
2nd response - Voice call connected:
CONNECT
DATA/FAX:
2nd response only - Data/Fax call connected
CONNECT
When MO call fails:
1. Connection Failure - NO CARRIER or BUSY or NO
ANSWER
2. General Failure - ERROR
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