Sony Ericsson T290i Quick reference guide

October 2004
T290i/T290c
Calling made easy

White Paper T290i/T290c
2October 2004
This document is published by Sony Ericsson
Mobile Communications AB, without any
warranty*. Improvements and changes to this text
necessitated by typographical errors, inaccuracies
of current information or improvements to
programs and/or equipment, may be made by
Sony Ericsson Mobile Communications AB at any
time and without notice. Such changes will,
however, be incorporated into new editions of this
document. Printed versions are to be regarded as
temporary reference copies only.
*All implied warranties, including without limitation
the implied warranties of merchantability or fitness
for a particular purpose, are excluded. In no event
shall Sony Ericsson or its licensors be liable for
incidental or consequential damages of any
nature, including but not limited to lost profits or
commercial loss, arising out of the use of the
information in this document.
This White Paper is published by:
Sony Ericsson Mobile Communications AB,
SE-221 88 Lund, Sweden
Phone: [phone]
Fax: [phone]
www.SonyEricsson.com/
© Sony Ericsson Mobile Communications AB,
2004. All rights reserved. You are hereby granted
a license to download and/or print a copy of this
document.
Any rights not expressly granted herein are
reserved.
First edition (October 2004)
Publication number: EN/LZT 108 7578 R1A
Preface
Purpose of this document
This White Paper will be published in several revisions as the phone is developed. Therefore, some of the
headings and tables below contain limited information. Additional information and facts will be forthcom-
ing in later revisions.
The aim of this White Paper is to give the reader an understanding of technology and its main applications,
as well as the main functions and features of the T290i/T290c.
Note: This document contains general descriptions for this specific Sony Ericsson mobile T290i/T290c.
People who can benefit from this document include:
• Operators
• Service providers
• Software developers
• Support engineers
• Application developers
More information, useful for product, service and application developers, is published on
www.SonyEricsson.com/developer/, which contains up-to-date information about technologies, products
and tools.

White Paper T290i/T290c
3October 2004
Online Developer Resources
On www.SonyEricsson.com/developer, developers will find all documentation and tools such as phone
White Papers, Developers Guidelines, SDK's and API's etc. The developer web site also contains discus-
sion forums monitored by our Sony Ericsson Developer 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.
Sony Ericsson Developer Support
Sony Ericsson offers developers professional technical support services. The service can be purchased
from the developer web portal, as part of the Sony Ericsson Core and Core+ membership package or as
individual support incidents. There are two levels of support, described below.
The Basic Email Developer Support is an annual support service included in the Core membership that
provides developers with all the basics to successfully develop world-class applications for Sony Ericsson
products. With this support contract, developers get access to Sony Ericsson developer support engi-
neers via email with same-day response, five technical support incidents as well as the ability to purchase
more.
The Priority Email Developer Support is an annual support service included in the Core+ membership that
equips professional developers with everything they need to successfully develop world-class applica-
tions for Sony Ericsson products. With this support contract, developers get priority access to Sony Erics-
son developer support engineers via email with fast response times and up to 50 technical support
incidents.
Document conventions
The Picture Messaging feature is referred to as MMS (Multimedia Messaging Service) troughout this doc-
ument.

White Paper T290i/T290c
4October 2004
Document history
Change history
2004-10-22 Version R1A1 First edition

White Paper T290i/T290c
5October 2004
Contents
Product overview ........................................................................................................6
Key functions and features .......................................................................................7
More in-phone functions ...........................................................................................9
Technologies in detail ...............................................................................................11
Multimedia in the T290i/T290c ................................................................................12
MMS (Multimedia Messaging Service) ....................................................................12
MMS objects .......................................................................................................13
Benefits ................................................................................................................14
MMS technical features .......................................................................................15
EMS (Enhanced Messaging Service) ......................................................................16
EMS – more than just words ...............................................................................16
New possibilities with messaging ........................................................................17
WAP services ..........................................................................................................19
Using WAP in the T290i/T290c ............................................................................19
Bearer type characteristics ..................................................................................21
Gateway characteristics ......................................................................................21
Security using WAP .............................................................................................21
Configuration of WAP settings ............................................................................22
Push services .......................................................................................................23
Mobile Internet ........................................................................................................23
Data connections .................................................................................................23
General Packet Radio Services ...............................................................................24
Using GPRS in the T290i/T290c ..........................................................................25
In-phone functions and features .............................................................................26
Network-dependent features ...............................................................................31
SIM application toolkit .............................................................................................33
User interaction with SIM AT ...............................................................................36
Facts and figures ......................................................................................................39
Terminology and abbreviations ...............................................................................40
Related information .................................................................................................44
Documents ..........................................................................................................44
Links ....................................................................................................................44
Trademarks and acknowledgements ..................................................................44
Technical specifications ..........................................................................................44