Cisco CTS-3010 Administration Manual page 19

Preface
E1/T1 Support - Extended Reach
Extended Reach supports users in locations where bandwidth is costly or unreliable. Because internet
bandwidth is not dedicated, there may be experience issues or even call drops at certain times of the day
due to a decrease in available bandwidth. Extended Reach is directly related to the quality of the call. If
the call is 720p Lite on guaranteed bandwidth it is considered to be Extended Reach. This feature
supports the following:
T1/E1 with QoS: 720p (Lite) and 720p (Good). See
•
"Best Effort" premium broadband (Fiber-Optic Broadband Internet (FIOS), Cable)
•
Sends and receives audio and video from legacy T1/E1 endpoints
•
Gradual Decoder Refresh (GDR)
Provides a starting point or refresh of the encoded bitstream.
sent to endpoints that switch to a new source. IDR frame picture quality is typically lower than regular
P-frames, so GDR is a method of gradually refreshing the picture over a number of frames, giving a
smoother, less bursty bitstream.
HD Interoperability
Cisco TelePresence Interoperability delivers any-to-any capabilities so that standards-based video
conferencing technologies can participate in Cisco TelePresence meetings. This offering extends the
immersive experience beyond Cisco TelePresence to virtually all standard-definition (SD) and
high-definition (HD) video conferencing systems and other business video applications and
technologies.
HD Interoperability allows high-definition 720p inter-operability with third-party endpoints and
includes the following features:
• Negotiates higher bandwidths up to 2.25 mbps for HD Interop calls.
• Supports the
receive G722 audio for the audio portion of the Interop call with traditional video conferencing
participants. CTS sends this G.722 audio stream along with wideband advanced audio coding with
a low delay (AAC-LD) audio stream.
Presentation video and audio are not shared with HD Interop endpoints.
Note
Interoperates with Cisco Unified Videoconferencing CUVC 52XX, which sends
•
non-context-adaptive arithmetic coding (CABAC) video for improved video quality with better
compression.
Adds support for HD quality and standard (SD) quality devices in the same meeting with support
•
for traditional video conferencing devices connected to CUVC 52XX.
Once HD Interop is configured in the CTS Manager Configuration > Application Settings window,
CTS Manager always reserves HD Interop resources. See the
Administration Guide
Note All of the rooms that are to be added to the call must support this feature.
See the following HD interoperability support documentation on Cisco.com:
• Cisco TelePresence System 3000 Cisco TelePresence Interoperability
• Cisco TelePresence System 3200 Cisco TelePresence Interoperability
OL-13676-05
Advertise G.722 Codec audio codec feature and indicates the ability to send and
for your release on Cisco.com for more information.
Cisco TelePresence System Release 1.6 Administration Guide
Quality Per Display - 720p
Initialization frames (IDRs or GDRs) are
Cisco TelePresence Manager
(Lite).
v