Technical Description of TANDBERG 8000 with software version E3/B8
D12008 Rev. 11
63
5.8.4
H.231/H.243 (MCU control)
When connected to an external MCU (Multi Conference Unit) on ISDN or IP networks, the
TANDBERG system uses the ITU standard H.231
‘Multipoint control units for audiovisual
systems…’
for MCU controlling features, such as Chair Control and View Site. These features
are easily available by using the colored Quick Keys on the remote control.
The standard H.243
‘Procedure for establishing communications between three or more audio-
visual terminals..’
is also implemented in the system for MCU connections for both ISDN and
IP with the following functionality:
•
Floor request and release
•
Site naming and view indication
•
MultiSite cascading
•
Microphone off indication
•
TCS-1 password.
5.8.5
H.243 Password
H.243 password
is supported by the system. This feature allows you to have a meeting
password set in the external H.320 or H.323 MCU and the endpoints must then put this
password in to join the meeting. The password must be numerical.
There are two ways of entering this external MCU password:
1) Password entered together with the MCU number
E.g. With MCU number=207987654 and password=
1234
, the number to dial will be
207987654
*1234
.
2) Password prompted on screen after the MCU is called
In this case the MCU sends a TCS-1 message to the terminal immediately after the terminal has
called the MCU. When the TANDBERG system receives this message, it will prompt the user
for the password. If password is correct the MCU will join the system to the conference; if not
correct the system will not be connected.
5.8.6
H.281 (FECC)
The ITU standard H.281 is implemented to control the remote site camera and video sources.
The TANDBERG system uses H.281 on both H.320 (Synchronous networks) and H.323
(Asynchronous networks).
5.8.7
KG-194/KIV-7 (NATO encryption)
The TANDERG system supports the NATO encryption standard KG-194.
This requires external cryptographic equipment to be connected between the codec’s NET port
and the network (the same equipment is required at the remote end).
