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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
transports. 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 centrally on web servers and downloaded as
required. While there is some overlap, WAP is a
SIM AT services supported by the T300/T302
Service
CALL CONTROL
CELL BROADCAST
DOWNLOAD
DISPLAY TEXT
GET INKEY
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
programming is distributed to users over the air,
directly to their phones. In the T300/T302, a
separate menu is available for functions residing
on the SIM card. These can include submenus for
controlling functions, and also functions which
allow the phone to initiate calls, send data, and
display information to the user.
Mode
Text of up to 240 characters (120 ucs2 coded).
bit 1:
0 = normal priority
1 = high priority
bit 8:
0 = clear message after a delay
1 = wait for user to clear message
General: The GET_INKEY requires that the user
press Yes to confirm his/her choice
bit 1:
0 = digits (0-9, *, # and +) only
1 = alphabet set
bit 2:
0 = SMS default alphabet
1 = UCS2 alphabet
bit 3:
0 = character sets defined by bit 1 and bit 2 are
enabled
1 = character sets defined by bit 1 and bit 2 are
disabled and the Yes/No response is requested
T300/T302
White Paper, August 2002
Support
in T300/
T302
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
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