Patent ID: 8131265

Claim:
A method for implementing a Multimedia Ring Back Tone (MRBT) service, comprising: determining, by an Originated Mobile Switching Center (O-MSC), whether to perform an MRBT; if yes, sending, by the O-MSC, a first message to an MRBT platform to set up a call with the MRBT platform; after a called party paging is successful, sending, by the O-MSC, a second message to a calling party to establish a connection between the calling party and the MRBT platform; performing, by the MRBT platform and the calling party, a first media capability negotiation after the connection is established; playing, by the MRBT platform, an MRBT for the calling party according to the result of the first media capability negotiation via the connection established between the MRBT platform and the calling party before the call is answered.