Technical Description of TANDBERG 8000 with software version E3/B8
D12008 Rev. 11
27
4.1.5
Streaming
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TANDBERG 8000 supports streaming of H.261 video and G.711 (
µ
-law) audio both when the
system is in a call or outside a call. When inside a call, audio from both sides is streamed
together with the video from the site that is ‘on air’ (i.e. voice switched). It is also possible to
force the video from either local or far end to be shown constantly.
The streaming video may be displayed on the codec’s web page. The streamed video/audio can
be viewed on most free viewers, but TANDBERG recommends that Apple Quick Time is used.
•
Streaming video rates available are: 16, 32, 64, 128, 192, 256 or 320 kbps.
•
Streaming audio rate is fixed to 64 kbps.
The streaming format RTP (over UDP) is supported on the TANDBERG system.
For security purposes, streaming is
disabled
by default and may only be enabled from the main
menu or the data port. However,
start/stop
and
configurations
can be set via web or telnet.
A
Streaming password
may be set in order to prevent unwanted users streaming from the
system.
Streaming Chat:
When streaming is viewed from the systems web page, it is possible to send messages to the
system. The messages are displayed on the system’s monitor.
4.1.5.1
Automatic announcement of Streaming
The TANDBERG 8000 can be used in a Cisco IP/TV environment. The system periodically
transmits a Session Announcement Protocol (SAP) message to inform clients where the
streaming can be found.
4.1.6
Intelligent Call Management (ICM)
By using TANDBERG's Intelligent Call Management (ICM), calls can be made from data rates
of 56 kbps up to 2 Mbps via ISDN networks (3 Mbps on IP).
ICM is a highly sophisticated feature provided by the TANDBERG 8000 that makes the
connection between two sites more reliable and safe. If the ISDN network drops channels
during a call, the conference will not shut down but adjust to the remaining number of available
channels
20
. This ability is called ‘Downspeeding’ and is in accordance to the BONDING Mode
1 standard.
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Active streaming disables MultiSite and Duo Video. For further info on Streaming, please refer to the User Manual and the documents
‘TANDBERG on Streaming’ (D12408 and D11934)
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Depending on the capability of the remote system to support downspeeding.
