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TANDBERG Videoconferencing SystemGeneral use
MultiSite (MCU)
The system has a built-in multipoint conference unit (MCU), MultiSite, which has the capability to establish
meetings with up to 4 video sites (5 if at least one site is a telephone call, ISDN/analogue/mobile).
The video calls in a conference must be connected using the same bandwidth.
A conference can consist of any combination of ISDN/IP
sites.
It is possible to have telephone meetings with up to 5
participants.
The MultiSite supports both Voice Switched and
Continuous Presence mode (see ‘MCU Services’ in
‘Advanced use’ for description of these modes).
Establishing a conference is done by first making a call
to one site. When a call is established with the first site,
the other sites are connected one by one.
It is possible to either dial out to the sites or the sites
can dial in to the MultiSite.
Both ISDN, IP and mixed ISDN/IP conferences can be
encrypted if all systems supports encryption.
For encrypted calls, there is a maximum bandwidth of 768 Kbps for the whole conference. This means that a 3
site conference will have a maximum bandwidth of 384Kbps per connection, while a 4 site conference will have a
maximum bandwidth of 256 Kbps per connection.
SEE ‘UTILITIES’, ‘CONTINUOUS PRESENCE’ TO CHANGE MODE.
TIP
MULTISITE - WHICH QUALITY CAN BE USED ON EACH SITE?
4 SITES 4 SITES 3 SITES 3 SITES + P-TO-P +
(2MBPS VERSION)+ 1 PHONE 1-2 PHONES 1-3 PHONES
BRI (768 KBPS) 256 KBPS 192 384 320 512
PRI-E1(1920 K) 512 512 768 768 1472
PRI-T1(1472 K) 384 384 512 512 1152
LAN (3MB) 768 768 * 1152 1152 * 1920 *
MIX ISDN/LAN EXAMPLE: IF 4 SITES ARE CONNECTED, TWO LAN SITES AND ONE ISDN SITE CAN BE CONNECTED ON 512 KBPS (2MBPS
VERSION
) OR 256 KBPS (768 KBPS VERSION). NOTE - 4 SITES INDICATES YOURSELF + THREE OTHER SITES.
* - REQUIRES 1-3 ISDN CHANNELS AVAILABLE.
WHEN MIXING ISDN
AND LAN SITES, THE
TOTAL
BANDWIDTH
LIMITATION
IS THE SAME
AS
FOR THE ISDN
BANDWIDTH.
NOTE
THE SYSTEM SUPPORTS MIXED MULTISITE WITH V.35 AND IP, BUT THE IP SITE MUST BE ADDED AFTER THE V.35 IS UP AND RUNNING.
NOTE