Summary

This appendix defines a comfort noise payload format (or bit-stream) for ITU-T G.711 use in packet-based multimedia communication systems.

The use of the payload format is intended for packet-based systems with a large header overhead where the packet transmission rate plays a significant role in the overall system bit-rate. In this situation, the use of VAD/DTX/CNG can significantly reduce the packet transmission rate and hence improve the bandwidth efficiency.