User manual

AT Command Set
MC35_ATC_01_V05.00 Page 21 of 256 15.07.2002
2.5 ATD Mobile originated call to dial a number
Execute command
ATD[<n>]
[<mgsm][;]
This command can be used to set up outgoing voice, data or fax calls. It also
serves to control supplementary services.
Note:
The command may be aborted generally when receiving an ATH command during
execution. It can´t be aborted in some connection setup states, such as handshak-
ing.
Two different call setup options can be determined for voice calls: TA returns OK
either after dialing was completed or after call has been established. Setting is
made with AT^SM20 (see Chapter 8.18). In data connections, call setup always
terminates when call has been established.
Response
If no dialtone (parameter setting ATX2 or ATX4):
NO DIALTONE
If busy (parameter setting ATX3 or ATX4):
BUSY
If a connection cannot be set up:
NO CARRIER
If successfully connected and non-voice call:
CONNECT<text> TA switches to data state.
Note: <text> output only if +ATX parameter setting with value > 0.
When TA returns to command mode after call release:
OK
If successfully connected and voice call:
OK
Parameter
<n> String of dialling digits and optionally V.25ter modifiers (dialling digits):
0-9, * , #, +, A, B, C
V.25ter modifiers: these are ignored: ,(comma), T, P, !, W, @
Emergency call:
<n> = 112 worldwide number (no SIM needed)
<mgsm> String of GSM modifiers:
I Activates CLIR (disables presentation of own phone number to called
party)
i Deactivates CLIR (enables presentation of own phone number to
called party)
G Activate Closed User Group explicit invocation for this call only.
g Deactivate Closed User Group explicit invocation for this call only.
<;> Only required to set up voice calls. TA remains in command mode.