MMS +Settings Overview

MMS Settings provides a generic way to store settings for Multimedia Message +Service (MMS) messaging.

Multimedia Messaging Service (MMS) is a standard for telephone messaging +systems for sending messages that include multimedia objects (images, audio, +video, rich text).

Purpose

Settings functionality is provided by the mmsgenericsettings.dll file +to allow a messaging client to persist MMS settings in the Central Repository. +The settings functionality is also used by the Server MTM to retrieve the +setting information before sending and receiving messages.

Key terms

IAP: Internet Access Point (IAP) offers dial-up access to Internet.
WAP: Wireless Application Protocol (WAP) is a secure specification that +allows users to access information instantly through handheld wireless devices +such as mobile phones.
WSP: Wireless Session Protocol (WSP) provides the upper-level application +layer of WAP with a consistent interface for connection-mode session service +and connectionless session service.
Central Repository: The Central Repository provides a user interface to allow one or more +clients to open repositories, and to provision and retrieve information from +those repositories.

Description

The mmsgenericsettings.dll file +provides message settings encapsulation classes to manage MMS settings. The +MMS settings are stored in the central repository and MMS are stored in the +Message Store.

The following settings are supported by mmsgenericsettings.dll to +manage MMS settings:

MMSC (MMS server) address
WSP or HTTP transport +(the HTTP or WSP transport can be selected at the run-time).
Automatically get messages +on notification
Request delivery reports
Preferred IAP for the +MMS network connection

If connection fails with the preferred IAP +or WAP account, a connection using the second choice option, if present, is +made. The transport selection (WSP or HTTP) determines whether the WAP or +HTTP account preferences are applied.

API summary

The following APIs are used for MMS +settings:

The CMmsAccounts class +is used to store and restore the configuration settings.
The CMmsSettings class +is used to specify and retrieve configuration settings. Messaging clients +must use an instance of this class along with the CMmsAccounts class +to store and restore the configuration settings.
The MMmsSettingsObserver class +is used to provide the interface for notification of changes that occur in +the Central Repository.

Message encapsulation

The classes above provide +message access functionality which is used to create, store, restore and read +messages. The following are the functions of the message classes:

Adding media objects +to the message.
Enumerating through +media objects.
Adding recipients and +a subject line to a message.
Adding other headers +to the message. For example, expiry date.
Finding the appropriate +media object for a given Uniform Resource Identifier (URI) in the Synchronized +Multimedia Integration Language (SMIL).

The message data is stored in the central repository using one entry +per message regardless of the number of media objects added to the message. +This is preferable to using multiple message entries as it is faster and uses +less disk space.