Westermo GDW-11 - Manual (Page 24)

24 Call Control commands 6615-2220
Call Control commands
D and DL – Dial command
Description:
The ATD command is used for data or fax call. As per GSM 02.30, the dial command also
controls supplementary services.
For a data or a fax call, the application sends the following ASCII string to the product
(the bearer must be previously selected with the +CBST command):
ATD<nb> where <nb> is the destination phone number.
Note: If a GPRS PPP session is already running, the setting of a CSD (GSM data call) is
not supported.
For a voice call, the application sends the following ASCII string to the product: (the
bearer may be selected previously, if not a default bearer is used). A voice call must be
used when sending DTMF tones.
ATD<nb> where <nb> is the destination phone number.
Please note that for an international number, the local international prefix does not need
to be set (usually 00) but does need to be replaced by the `+’ character.
Example: to set up a data call to the Westermo Sweden office from another country, the
AT command is: ATD+4616428000
Note that some countries may have specific numbering rules for their GSM handset
numbering.
The ATDL command dials the last valid dialled number.
Direct dialling from a phonebook (stored in the SIM card)
Direct dialling can be performed with the following command:
ATD> <index> to call <index> from the selected phonebook
(by the +CPBS command)
ATD> “BILL”; ............... to call BILL from the selected phonebook
ATD> mem <index> (mem is “SM”,”LD”,”MC”,”ME”,”RC”,”MT” or “SN”, see +CPBS
command) allows direct dialling from a phonebook number.
Does not function with “ON” mem.
Syntax:
ATD<nb>[<I>][;]
ATD>[<mem>]<index>[<I>][;]
ATD>[<mem>]<name>[<I>][;]
Response:
The response to the ATD command is one of the following: