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White Paper T290i/T290c
33 October 2004
SIM application toolkit
The SIM Application Toolkit (SIM AT) is a smart
card-centric method of deploying programs that
apply only to GSM and to SMS and USSD trans
-
ports. Programs must be distributed on smart
cards. WAP is an Internet-centric method of
deploying programs that is independent of network
technology. Programs and content are kept cen
-
trally on web servers and downloaded as required.
While there is some overlap, WAP is a particularly
good choice when deploying programs that also
have an HTML version for desktop use. Work is
currently under way on building interfaces between
the two technologies.
For an operator, a company or service provider,
SIM AT offers a powerful way to deploy programs
and services to users, without the need for new or
upgraded equipment. All necessary setup and pro
-
gramming is distributed to users over the air,
directly to their phones. In the T290i/T290c, a sep
-
arate menu is available for functions residing on the
SIM card. These can include submenus for control
-
ling functions, and also functions which allow the
phone to initiate calls, send data, and display infor
-
mation to the user.
SIM AT services supported by the T290i/T290c
Service Mode Support
in T290i/
T290c
CALL CONTROL Yes
CELL BROADCAST DOWN-
LOAD
Yes
DISPLAY TEXT Text of up to 240 characters (120 ucs2 coded). Yes
bit 1: 0 = normal priority Yes
1 = high priority Ye s
bit 8: 0 = clear message after a delay Yes
1 = wait for user to clear message Yes