QoS Packet Marking

Implementing QoS Solutions for H.323 Video Conferencing over IP


H.323 is the standard with global acceptance for multimedia conferences in an IP network. This document discusses tools to implement Quality of Service (QoS) for H.323 video conferences over an enterprise WAN with relatively low-speed links.



Readers of this document should have knowledge of these topics:

  • The components of an H.323-compliant system. Components include, but are not limited to, terminals, gateways, gatekeepers, multipoint controllers (MCs), multipoint processors (MPs), and multipoint control units (MCUs). Refer to White Paper: Deploying H.323 Applications in Cisco Networks for more information.

  • Cisco H.323 video conference solutions, which include MCUs and gateways as well as the Multimedia Conference Manager (MCM) gatekeeper and proxy. See the Related Information