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Cisco TelePresence over Satellite Networks
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Supported CTS Devices
The CTS 500, CTS 1000, CTS 1100, and CTS 1300 endpoint models are supported as the remote
endpoint on the far end of a satellite link.
Other endpoint models (CTS 3000 Series and CTS 3200 Series) have not been qualified to work on the
remote side of a satellite link because the bandwidth needed for these three-screen systems quickly
becomes cost-prohibitive to run over satellite networks. Any Cisco TelePresence endpoint or mix of
endpoints (for a multipoint call) can be used on the terrestrial side of the satellite link.
Supported CTS Software
You must be running CTS software version 1.5 or a later release on all Cisco TelePresence endpoints,
Cisco TelePresence Multipoint Switches, and Cisco TelePresence Managers within your network to
participate in a satellite call.
CTS Release Software is backward compatible up to two prior releases.
Note
Supported Satellite Bandwidth
You will need a minimum of 3-MB bandwidth (at 720p, good motion handling) in a
single-channel-per-carrier (SCPC) configuration over a single-hop satellite link.
Note
Because the Cisco TelePresence video and audio are traveling up to the satellite and back down to an
earth station, significant (500 ms or more) latency is introduced into the signal. The result is noticeable
delay in the conversation. In addition, atmospheric conditions or other interference may impact
satellite-link performance and introduce jitter or packet loss into the call. The result may be noticeable
degradation of the video quality.
CTS software release 1.5 and later releases support satellite deployment configurations that significantly
raise the thresholds for network warning messages and call termination. When a satellite endpoint joins
a call (point-to-point or multipoint), all other endpoints in the call negotiate the new threshold setting,
so no one in the call gets warning messages or gets dropped just because a satellite-based endpoint joins
the call.
For information about Cisco TelePresence service level requirements including bandwidth, latency
(delay), jitter (variations in delay), and packet loss, see the
Design Guide
Satellite Security
The Cisco TelePresence application supports Transport Layer Security (TLS) and Secure Real-Time
Transport Protocol (SRTP) encryption for signaling and media paths.
Cisco Unified Communications Manager Configuration Guide for the Cisco TelePresence System
B-2
Satellite Security, page B-2
on Cisco.com.
Appendix B
Satellite Licenses for the Cisco TelePresence System
Cisco TelePresence Network Systems 2.0
OL-13677-05
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