Specifications

AT command set for XX Siemens mobile phones and modems
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Document No.: A30880-A10-A001-XX-
D376
Revision: Master R75
Revision Date: 29. September.2004
17
To dial for a CSD data call or a FAX call the trailing semicolon (;) must not be used The following
syntax for a CSD data/Fax call is supported:
ATD<type><number> Dial command for modem and fax calls
The selection if either a data or fax call is set up depends on the setting of the
fax class. See the command AT+FCLASS for further details.
<type>
T
P
Tone or pulse dialling. Ignored as not useful for GSM calls
I
ISDN
The phone call will be made as a UDI (V.110) call. A connection to a
V.110 terminal adapter will be established. The data transmission
speed is the same as for an “analog” call (2400 / 4800 / 9600 / 14400
bps). See
AT+CBST for further information. This parameter is ignored
for fax calls.
Example:
AT+CBST=7
ATDI1234
and
AT+CBST=71
ATD1234
will result in the same call setup parameters
PP
PLUS: same as + character
ATDL Dial last telephone number
ATD for CSD data call or FAX calls
To dial for a GPRS data call the following syntax is supported:
ATD*<GPRS_SC>[*[<called_address>] [*[<L2P>][*[<cid>[,<cid>[,…]]]]]]#
Dial command for a GPRS data call.
<GPRS_SC>
99
GPRS service code
request to use the Packet Domain service
<called_address>
A IP-address (IPv4, IPv6)
<L2P>
PPP
Layer 2 protocol
The protocol used for connect the MT to
external device.
<cid> 1-3
PDP context identifier
ATD*<GPRS_SC_IP>[*<cid>[,<cid>[,…]]]#
Dial command for a GPRS data call.
<GPRS_SC_IP>
98
GPRS service code
request to use the GPRS with IP (PDP types
IP and PPP)