At Commands For Call Control; Dial Commandd - Wavecom WMO1-G900 User Manual

Wavecom GSM Modem
3.

AT commands for Call Control

3.1. Dial command D
This AT command is used by the external application to establish a call.
For a data call, the application sends to the GSM module the following
ASCII string : (the bearer has to be selected before with the +CBST
command)
For a voice call, the application sends to the GSM module the following
ASCII string : (the bearer may be selected before, if not a default bearer is
used)
The answer to the command is the following :
OK
CONNECT <speed> if tthe call succeeds, for data call only, <speed>
BUSY
NO ANSWER
Please, notice that in case of international number, the local international
prefix has not to be set (usually 00) but need to be replaced by the '+'
character.
Example : to establish a voice call to Wavecom from another country,
the AT command shall be :
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ATD<xyz> where <xyz> is the called phone number.
ATD<xyz>; where <xyz> is the called phone number.
if the call succeeds, for voice call only
takes the value negotiated by the GSM module.
if the called party is in communication
if no hang up is detected after a fixed network
time-out
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