Patent ID: 7778655

Claim:
A method of half duplex communications between a first terminal and a second terminal via a server, the method performed by the first terminal and comprising: receiving, from the server, a stop media burst message indicating that an ongoing media data transmission to the server should be stopped for the first terminal that was granted a floor; transmitting, to the server, a last media packet after receiving the stop media burst message; transmitting, to the server, a media burst complete message that indicates a release of the floor for the first terminal after the last media packet is transmitted; receiving, from the server, a media burst message to notify that the floor has been granted to the second terminal; receiving, via the server, media data sent from the second terminal; receiving, from the server, a media burst confirm message indicating that the floor previously granted to the second terminal has been granted back to the first terminal; receiving, from a user of the first terminal, a confirmation that said user intends to resume the previously ongoing media data transmission to the server; and transmitting, to the server, media data according to the floor granted back to the first terminal.