Siemens MC35 - Manual (Page 15)

AT Command Set
MC35_ATC_01_V03.02 Page 15 of 228 13.03.2002
2.5 ATD Mobile originated call to dial a number
Execute command
ATD[]
[
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 hand-
shaking. Different behaviour between voice and data call. Behaviour depends on
parameter setting of AT^SM20. Voice call setup terminates immediately with OK.
Data call setup 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 TA switches to data state.
Note: 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
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:
= 112 worldwide number (no SIM needed)
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)
<;> Only required to set up voice calls. TA remains in command mode.
Reference
V.25ter/GSM
07.07
Note
• Parameter ”l“ and ”i“ only if no *# code is within the dial string.
• is not supported for data calls.
• is default for last number that can be dialled by ATDL.
• See also +ATX and chapter 9.1.5 for .
• The *# codes can only be used with voice calls (i.e.if “;” is appended).
• If ATD is used with a USSD command (e.g. ATD*100#;) an AT+CUSD=1 is
executed implicitly (see AT+CUSD, pg. 115).