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Figure 2A shows the network-related elements required for developing and offering services to
mobile users.
Wireless
Network
WAP
Proxy
WTA
Server
Binar
y
Binary
WML
HTML
Filter
WML
WML
HTML
Web
Server
Figure 2A: Elements related to mobile browsing
Web server
The Web server stores the applications written in WML. Alternatively, existing HTML applications can
be used.
HTML filter
Any applications written in HTML will have to be converted to WML before they are sent to the mobile
terminal. This HTML filter may form part of the Web server or the WAP proxy.
WAP proxy
The WAP proxy acts as the gateway between the cellular network and the Internet or Intranet. It
encodes the information, which is to be sent to the mobile terminal in binary format and decodes
information sent from the mobile terminal.
WTA server
The WTA server handles network-specific applications. These applications are not discussed in this
document.
Additional Information
Further information on WAP is available at http://www.openmobilealliance.org/
.
WAP Service Developer's Guide for Nokia Series 30 Phones with WML Browser
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