General Information - Siemens M35 Series Service Manual

General Information

Information
Due to different requirements of the markets, the M35 has different variants, which broadly
classified under International version and Asian version. Marketing name for international version
is M35 or M35i, whereas Asian version is named M3508 or M3508i.
Difference between M35(18) and M35(18)i
M35(18)i mobile software has WAP Browser 1.1 incorporated thus enabling user to surf the
Internet and it have the built-in soft modem for GSM Data Service. The non-Wap M35(18) do not
have the soft modem.
The differences between the M35 and M35i are the hardware and software. The memory size of
M35 is 16MB and that of M35i is 32MB.
There are also two variants for 3518, one without the WAP browser is 3518 and that with WAP
browser version 1.1 is 3518i.
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. Wirelss 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.