Sim Application Toolkit - Sony Ericsson T100 White Paper

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 underway on building interfaces between
the two technologies.
SIM AT services supported by the T100/T102/T106
Service
CELL BROADCAST DOWNLOAD
DISPLAY TEXT
GET INKEY
GET INPUT
Mode
General: Support for packed and unpacked format in
SMS default alphabet as well as UCS2 alphabet
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
General: No. of hidden input characters
bit 1: 0 = digits (0-9, *, # and +) only
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White Paper
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 T100/T102/T106,
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 dis-
play information to the user.
T100/T102/T106
Support in
T100/T102/
T106
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
20
Yes
March 2003