| 摘要 |
<p>A method and system enables a conference call that includes a push-to-talk over cellular (PoC) call session and a non-PoC over cellular call session. The method includes establishing a PoC call session between a first communication device and a second communication device using a PoC server (step 705). A non-PoC call session is also established between the first communication device and a third communication device (step 710). Transcoded media data are then generated by transcoding and buffering media data received at the first communication device from the third communication device (step 715). Permission to transmit in the PoC call session is then received at the first communication device from the PoC server (step 725). The transcoded media data are then transmitted, from the first communication device to the push-to-talk over cellular server, for forwarding to the second communication device (step 730).</p> |
