H.239 / People+Content - Polycom RMX 1500 Administrator's Manual

Chapter 2-Additional Conferencing Information

H.239 / People+Content

H.239
People+Content
Guidelines
2-30
The H.239 protocol allows compliant endpoints to transmit and receive
two simultaneous video streams:
• People Conference – Continuous Presence or Video Switched
conference
• Content Conference – Video Switching conference for content
sharing
By default, all conferences, Entry Queues, and Meeting Rooms launched on
the RMX have H.239 capabilities.
To view Content, endpoints must use the same Bit Rate, Protocol, and
Resolution. An endpoint may not send Content while connecting to an
Entry Queue.
Endpoints without H.239 capability can connect to the video conference
without Content.
Cascade links declare H.239 capabilities and they are supported in Star
and MIH cascading topologies. For more details, see "Cascading
Conferences - H.239-enabled MIH Topology" on page 3-36.
People+Content utilizes a different signaling protocol and is Polycom's
proprietary equivalent of H.239.
• Both H.323 and SIP environments are supported.
• A mix of H.323 and SIP endpoints can share content.
• Conferences can include a mix of endpoints that support H.239 or
People+Content.
• All endpoints will receive Content at the highest resolution common
to all connected endpoints.
• SIP People+Content is supported with MPM+ and MPMx cards.
• H.239 is supported in MIH, Star and Basic Cascading topologies.