Nokia SERIES 30 Benutzerhandbuch

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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
Binary
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 
 
WAP Service Developer's Guide for Nokia Series 30 Phones with WML Browser
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