A system for handling data representative of audio/video information in a conferencing device. The system comprises a set of modules and subsystems for processing the data. The system further comprises at least one channel for transferring processed data between selected ones of the modules and subsystems, the at least one channel having a first buffer list associated therewith. Additionally, a work routine called by the at least one channel is configured to remove a buffer from the first buffer list and to send the buffer to an output routine called by the at least one channel.