Specifications

AT command set for XX Siemens mobile phones and modems

_________________________________________________________________________________________

Document No.: A30880-A10-A001-XX-

D376

Revision: Master R75

Revision Date: 29. September, 2004

The ATD command

The ATD command is a special command in that all characters specified in the same line (or up to a

semicolon) are considered part of the number to dial. The ATD command can be used to create three

types of calls:

• voice calls

• CSD data call / fax calls

• GPRS data calls

ATD for voice calls

To dial for a voice call the trailing semicolon (;) is required. The following syntax for a voice call is

supported:

Command Function

ATD<str>; Dial the dialing string <str> with the voice utility

Valid dial modifiers:

The next call is treated as a closed user group call

restrict AT+CLIR

suppress AT+CLIR for next call

tone dialing

pulse dialing is ignored

The trailing character ”;” indicates that the call is to be set up with the voice

utility. The dial command returns OK to the user immediately after starting a

voice call.

Other behavior like *# sequences in the dial command, and also data calls

remain unchanged.

A special form of the dial command is a GPRS data call. The syntax for

setting up such a GPRS data call is:

ATD*<99>[*[<called_address>] [*[<L2P>][*[<cid>]]]]#

ATD*<98>[*<cid>]#