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6195-2201
D – Dial command
Command syntax:
ATD <Numb> [I / i] [G/g] [;]
ATD> <PhbStr> [I / i] [G/g] [;]
ATD> mem <n> [I / i] [G/g] [;]
ATD> <PhbIndex> [I / i] [G/g] [;]
The ATD command is used to
establish a speech, data or fax call
.
For a data or fax call, the application sends to the GSM module the following ASCII
string: (the bearer has to be selected before with the +CBST command)
ATD<nb>
where <nb> is the called phone number.
For a voice call, the application sends to the GSM module the following ASCII string:
(the bearer has to be selected before, if not a default bearer is used)
ATD<nb>;
where <nb> is the called phone number.
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:
ATD+33146290800;
Notice that some countries can have particular numbering rules for their GSM handset
numbering.
The answer to the ATD command can be one of the following ones:
Verbose result code
Numeric (V0 set)
Description
OK
0
if the calls succeeds, for voice
call only
CONNECT <speed>
10,11,12,13,14,15
if the calls succeeds, for data calls
only, <speed> takes the value
negotiated by the GSM module
BUSY
7
if the called party is already in
communication
NO ANSWER
8
if no hang up is detected
after a fixed network time-out
NO CARRIER
3
Call setup failed or remote user
release. Use the AT+CEER
command to know the failure
cause
Summary of Contents for GS-01
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