| 摘要 |
A multimedia messaging service (MMS), wherein a user agent is notified of availability of a multimedia message and subsequently, after the user agent has sent a retrieve request, a streamable media component of a multimedia message is streamed to the user agent in a streaming session. The streaming session is established according to Session Description Data (SDD). Responsive to the retrieve request, the multimedia message is delivered to the user agent so that the streamable media component is represented with a descriptor pointing to a location from which the SDD can be obtained. The SDD is generated before or after the user agent requests for retrieval of the multimedia message but not necessarily by the time the user agent is notified for the availability of the multimedia message.
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