Sony Ericsson T312 Manuel D’Utilisation

Page de 74
White Paper
 
 
T310/T312
13
January 2003
Architecture
The MMS Centre (MMS-C) is comprised of the 
MMS Server, the MMS Proxy-Relay and the MMS 
Store. The MMS Centre is the central element of 
the MMS network architecture, providing storage 
and operational support, enabling instant delivery 
of multimedia messages from terminal-to-terminal 
and terminal-to-e-mail, and supporting flexible 
addressing. The centre’s MMS Proxy-Relay 
interacts with the application being run on the 
MMS-enabled terminal to provide various 
messaging services. WAP is used as bearer of an 
MMS message between the MMS-C and the MMS 
client (application). The WAP Gateway is used for 
delivery and retrieval of messages.
Message conversion
The MMS-C is able to perform limited message 
conversion - for example, from MMS to SMS - so 
that processing and air time is not wasted in 
sending messages to mobile terminals that do not 
have adequate capability to receive them. It also 
handles service aspects such as store and forward, 
guaranteed delivery, subscriber preferences, 
operator constraints, and billing information. The 
MMS-C also vouches for high quality messaging, 
e.g. by format conversion. This means that the 
MMS-C recognizes which formats are supported in 
the mobile phone, and adapts the MMS messages 
to these formats. 
OTA configuration
Users can easily get MMS into their phone. MMS 
supports OTA, meaning that the user does not have 
to configure the settings manually. 
The configuration is done by the operator.
Figure 3. The architecture of MMS