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Cisco TelePresence Multipoint Switch Release 1.1 Administration Guide
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Chapter 8 Interoperability with Legacy Video Conferencing Devices
Overview
mixes the G.711 channels for all CTS endpoints into a single G.711 audio and switches CIF and G.711
to CUVC. As the dominant audio segment changes throughout the meeting, CTMS switches the CIF
video stream accordingly. Audio-only participants on the CUVC side can join directly into the CUVC.
Figure 8-1 Cisco TelePresence Interoperability: From CTS/CTMS to CUVC
As shown in Figure 8-2, audio and video coming from CUVC to CTMS is switched to all CTS endpoints
when the audio coming from CUVC is deemed to be the most dominant segment. The CIF image from
CUVC is presented on the left screen of each CTS-3000 surrounded by black borders. With the
CTS-1000, the CIF image is displayed when CTMS senses that the CUVC participant is the active
speaker. The incoming 352x288 CIF image is stretched to 4CIF when displayed on either the CTS-1000
or CTS3000 high-definition plasma screen.
Note If you wish to see more than one CUVC participant displayed at one time, you can customize the CUVC
MCU layout configuration to display up to 16 CUVC participants. We recommend the 1x1 layout for
consistency with the Telepresence experience.
IP
London
Tokyo
New York
CTMS
H.264 1080p
CUVC
H.323 or H.320
Videoconferencing
SIP
Videoconferencing
Video Telephony
H.264 CIF
AAC-LD
G.711
Any video format CUVC supports
Any audio format CUVC supports
Active Segment
Cascade
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