Sony Ericsson T312 Benutzerhandbuch

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White Paper
 
 
T310/T312
18
January 2003
Easy create for WAP
Creating a WAP service is no harder than creating 
an Internet/intranet service, as WML and 
WMLScript are based on well-known Internet 
languages such as HTML and JavaScript.
Using standard tools
Service creators can use standard tools such as 
ASP (Active Server Page) or CGI (Common 
Gateway Interface) to generate content 
dynamically. Services can be created once and 
then made accessible on a broad range of wireless 
networks.
Maintain customer base
Existing services can be adapted to WAP. The 
necessary binary encoding is handled by a WAP 
Gateway, allowing HTML-based services to be 
viewed on the WAP browser of the T310/T312. An 
XHTML page can be viewed in both the WAP 
browser and in any standard Web browser.
Improve productivity
A business can use a WAP gateway to provide a 
secure connection to its corporate network, 
improving internal communication flow by making 
information available to mobile as well as office 
users.
The WAP profiles 
A WAP profile holds network settings and user 
identification, allowing the user to switch easily 
between corporate services and WAP services on 
the Internet, simply by switching WAP profile.
The T310/T312 has dynamic WAP profile handling, 
which means that the user can add, edit and delete 
WAP profiles. The T310/T312 has a maximum of 5 
WAP profiles.
During WAP browsing, the options button on the 
T310/T312 gives the user immediate access to a 
dynamic option menu for WAP services, similar to a 
mouse right-click in PC programs.
Bearer type characteristics
The T310/T312 accesses WAP services over IP. IP 
can be provided either over GSM Data or GPRS, 
depending on network services.
Typical differences which distinguish the bearer 
types are listed below.
GPRS access
Data is transmitted in packets, with transmis-
sion capacity being used by the application in 
use on an as-needed basis.
Higher transmission speed than with GSM Data 
or SMS access.
Pricing of GPRS can for example be dependent 
on the volume of data transmitted, rather than 
the duration of the connection.
Ideal for complex pull services, browsing, data 
transfer, provisioning, pager services, messag-
ing services, info services, push initiations.
GSM data access
Circuit connection of data calls, which means 
that the phone is connected during the entire 
WAP session.
Pricing is comparable to that of data calls in the 
network.
Gateway characteristics
A WAP Gateway provides Internet/intranet as well 
as WAP services to the mobile browser. A Gateway 
is identified by an IP number, depending on access 
type.
End-to-end gateway navigation
The WAP 2.0 supports E2E (End-toEnd) Gateway 
navigation, making it possible for example for a 
bank to redirect its clients from the Internet 
gateway to its own gateway.