V1.0
5
General Information
Due to different requirements of the markets, the S35i has different variants, which broadly
classified under International version and Asian version. Marketing name for international version
is S35i, whereas Asian version is named 3568i.
The different for ASIAN version is only mobile software.
The 3568i is equipped with a graphic display which enable the telephone to display CHINESE
characters, either in Traditional font or Simplified font, beside the standard English.
Wireless Application Protocol, WAP.
Wireless Application Protocol takes a client-server approach that uses the in-built micro-browser
to make a request, in wireless markup language (WML), for information or service. The request is
passed to a WAP Gateway which then retrieves the information from a Internet server, in HTML
format, and translate it into WML. The requested information is then sent to from the WAP
Gateway to WAP client (mobile) using the available and most appropriate mobile network bearer
services.
Wireless Protocol Stack.
Wireless Application Environment (WAE)
Wireless Session Protocol (WSP)
Wireless Transaction Protocol (WTP)
Wireless Transport Layer Security (WTLS)
Wireless Datagram Protocol (WDP)
Bearers e.g. Data, SMS, USSD
TABLE 1..1 WAP PROTOCOL STACK
1. Wireless Application Environment
Defines the user interface on the phone. WAE contains the WML,WML script and the
wireless telephony application (WTA).
2. Wireless Session Protocol
Link the WAE to two session services – one connection oriented operating above the WTP
and a connectionless service operating above WDP.
3. Wireless Transaction Protocol
Runs on top of the datagram service and part of the standard suite of TCP/IP protocols, to
provide a simplified protocol suitable for low bandwidth mobile station.
4. Wireless Transport Layer Security
WTLS incorporates security features that are based upon the established Transport layer
Security (TLS) protocol standard, that include data integrity checks, privacy on the WAP
Gateway to client leg and authentication.
