Sony Ericsson T630 Benutzerhandbuch

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White Paper
 T630/T628
36
October 2003
AT commands support
This section outlines the AT commands supported 
by the T630/T628. The information here can be of 
use for advanced users, to indicate the possibilities 
they have to:
develop new communications software
add the T630/T628 to an application’s list of 
compatible modems
adjust the settings of their mobile telephone and 
modem
The modem in the T630/T628 supports the V.25ter 
command set, which is the standard communica-
tion set used by modems.
The T630/T628 is compatible with industry de facto 
extensions, ETSI 07.05, 07.07 and 07.10.
Overview of AT command functions
AT commands are used to configure the mobile tel-
ephone, to request information about the current 
configuration or operational status of the mobile 
phone, and to test availability and request the 
range of valid parameters, when applicable, for an 
AT command.
The built-in modem can be set to any one of three 
modes of operation. These are:
Off-line command mode
The command mode for entry of AT commands, 
when the device is first turned on.
On-line data mode
Allows “normal” operation of the built-in modem, 
for exchanging data or facsimiles with a remote 
modem.
On-line command mode
For sending AT commands to the built-in modem 
while remaining connected to a remote modem.
The AT commands are grouped as follows:
Control and Identification
Call Control
Interface Commands
Data Compression
Mode  Management
Audio Control
Accessory Menus
Accessory Authentication
Voice Call Control
Accessory Identification
GSM DTE-DCE Interface Commands
GSM Call Control
GSM  Data
GSM High Speed Circuit Switched Data
GSM Network Services
GSM USSD
GSM Facility Lock
GSM Mobile Equipment, Control and Status
GSM Mobile Equipment Error Control
GSM SMS and PDU Mode
GSM  GPRS
GSM Phonebook
GSM Clock, Date and Alarm Handling
GSM Subscriber Identification
Ericsson Specific AT Commands for GSM
MMI Settings
Voice  Control
OBEX
WAP Browser
Online Developer Resources
AT the Sony Ericsson Developer World, developers 
will find all documentation and tools such as White 
Papers, Developers Guidelines, SDK’s and API’s 
etc. The developer web site also contains discus-
sion forums monitored by our Sony Ericsson Devel-
oper Support team, a searcheable Knowledge 
Base of support queries and solutions, Tips & 
Tricks, example code, etc. To stay up to date on 
development issues, register and subscribe to the 
monthly Sony Ericsson Developer Newsletter.