| 摘要 |
A method ( 500 ) and apparatus ( 301 ) are described for establishing a video information stream ( 102 ) and a corresponding audio information stream ( 103 ) between an originating communication unit ( 110 ) having floor control and a target communication unit ( 120 ). A call is initiated to obtain floor control and a media path is established for transferring the video and audio information streams. The video information stream is established in a full duplex mode and the audio information stream is established in a half duplex mode using a Session Initiation Protocol (SIP). The call may include a peer to peer or a group call.
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