Technical Description of TANDBERG MCU with software version D3
D12925 Rev. 03
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4.1.1 Mixed ISDN and IP Conferences
The MCU allows for using both ISDN and IP networks in same conference. In addition,
telephone sites (IP or ISDN) can also be included in the same conference.
The maximum IP, ISDN and mixed mode capacity is described in chapter 4.1.7. All conferences
may use the normal features of TANDBERG products such as Duo Video, Encryption etc.
4.1.2 Multiple
conferences
The TANDBERG MCU may run three separate videoconferences at the same time. The
meetings will be independent of each other as long as no resource restrictions apply (i.e.
bandwidth/number of sites).
Note: If the MCU is not registered to a Gatekeeper it is only possible to dial into conference
number 1 (via H.323).
4.1.3 PRI E1/T1 ISDN
4.1.3.1 ISDN
numbers
The PRI lines connected to the MCU should have at least one number each, to allow dial in
from ISDN.
Number Range Start:
If the PRI line has a range of numbers, the start number should be entered in the Number Range
Start field. The number range must be inclusive. All numbers in the range may be used by the
MCU for callback numbers, so the local ISDN switch must route all of these numbers to the
configured PRI. It is only necessary to enter the digits indicating the range. If the range is
67828669 to 67828699, then just enter 8669. Maximum amount of digits is 24.
Number Range Stop:
The last number in the PRI number range is entered in the Number Range Stop. If the range is
67828669 to 67828699, then just enter 8699.
PRI Trunk Grouping:
When Trunk Grouping is enabled, PRI 2, 3 and 4 will use the same number range as specified
for PRI 1.
