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White Paper Z300
21 October 2005
Messaging
MMS
An MMS message can contain
text, graphics, animations, images,
audio clips and ring melodies. For
third party developers’ information,
please visit
www.SonyEricsson.com/developer and
look for the MMS developers guidelines.
Multimedia Messaging uses WAP (Wireless Appli-
cation Protocol) or http as bearer technology which
also can be powered by the transmission technol
-
ogy GPRS. The messages may include any combi-
nation of text, graphics, photographic images and
music clips. MMS will serve as the default mode of
messaging on all terminals, making total content
exchange second nature. From utility to sheer fun,
it offers benefits at every level and to every kind of
user.
Over the air (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 configura
-
tion is done by the operator via OTA.
Note: The specification is in accordance with Erics-
son Nokia OTA configuration v7.1.
MMS objects
The key word to describe MMS content is rich.
Complete with words, sounds and images, MMS
content is endowed with the user’s ideas, feelings
and personality. An MMS message can contain
text, sound and pictures.
MMS technical features
The MMS standard, just like that of 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 phone. He or she does not 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 advan
-
tage of the high speed data transport technology
GPRS and support a variety of image and audio
formats to facilitate a complete communications
experience.
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 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 or http is used
as the bearer of an MMS message between the
MMS-C and the MMS client (application). The WAP
Gateway is used for delivery and retrieval of mes
-
sages. Information is read in the WAP browser.