Sony Ericsson P802 manual MMS technical features, Message conversion

For Internal Use Only	P800 Smartphone
	White Paper, May 2002

MMS technical features

The MMS standard, just like SMS, offers store and forward transmission (instant delivery) of messages, rather than a mailbox-type model. MMS is a person-to-person communications solution, meaning that the user gets the message directly into the mobile. He or she doesn’t have to call the server to get the message downloaded to the mobile. Unlike SMS, the MMS standard uses WAP as its bearer protocol. MMS will take advantage of the high speed data transport technologies EDGE and GPRS and support a variety of image, video and audio formats to facilitate a complete communication experience.

For more information and to see a demonstration of MMS, go to

http://www.ericsson.com/mms/demo

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. The WAP User Agent Profile (UAProf) is used to communicate the handset’s capabilities to the MMS server.

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