Study the RTP and RTCP protocol formats and their application to conferencing systems

Endpoints and conferencing systems in an IP network send voice and video packets via Realtime Transport Protocol (RTP). RTP has a companion protocol called RTP Control Protocol (RTCP), which provides information about the RTP streams related to packet statistics, reception quality, network delays, and synchronization.

Learn the fundamentals of RTP and RTCP protocol formats and their applications to conferencing systems in this chapter download from Voice and Video Conferencing Fundamentals. Study the different types of RTP devices used in conferencing systems and their functionalities. Then, explore the payload formats, packet types, and key frame detections for common video codecs. Finally, investigate stream loss detection with ICMP unreachable messages and RTP inactivity timeout messages

Title: Voice and Video Conferencing Fundamentals
Author: Scott Firestone, Thiya Ramalingam, Steve Fry
Publisher: Cisco Press
Chapter 4: Media Control and Transport
ISBN: 1-58705-268-7; Copyright 2007, Cisco Press. All rights reserved.
Used with permission from the publisher. Available from booksellers or direct from Cisco Press