Method and apparatus for echo cancellation

A digital broadcast communication system includes a transceiver configured to receive a digital packet containing a payload having voice content and to add a user's voice to the received voice content to create a combined voice content signal. The combined voice signal packet is then forwarded upstream to the network master wherein other similar devices may combine additional voice inputs. The system includes a buffer for canceling previously transmitted voice from a packet produced by the network master and adding a current most voice input from playback through a speaker.