Siemens AT Command Set Cellular Engines Wireless Modules MC35 ユーザーズマニュアル

MC35_ATC_01_V04.00

Page 16 of 238

02.04.2002

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 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<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

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.

Reference

V.25ter/GSM
07.07

Note

•  Parameter ”l“ and ”i“ only if no *# code is within the dial string.

•  <mgsm> is not supported for data calls.

•  <n> is default for last number that can be dialled by ATDL.

•  See also +ATX and chapter 9.1.5 for <text>.

•  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. 122).

•  Parameter ‘G’ or ‘g’ will be ignored if Closed User Group was already activated,

or accordingly, deactivated with AT+CCUG command.