Nortel Integrated Conference Bridge: Service Implementation Fundamentals; Nn43001-558/555-4001-135 01.02 Standard - Nortel 2100 Fundamentals

Group call-out
Each ICB card supports up to 64 group call-out lists, each with up to 61
telephone numbers. Each telephone number can be up to 31 digits in length.
The administrator defines group call-out lists through the BUI (see
Groups" (page
PCMCIA disk.
The administrator must define the following options for each group list:
•
•
The chairperson on an active conference can call all members of a group
call-out list by dialing the following: *2 <group list number> #. The ICB
dials out to all the telephone numbers in the requested group call-out list
simultaneously. If there are more than 31 numbers on the group call-out list,
the system requires two ICB cards.
When the system uses two ICB cards in a group call-out, the primary card
divides the group call-out list into two groups. The primary card dials one
group of numbers and sends the second group to the secondary card
over the TCP/IP LAN. The secondary card then dials the second group of
numbers. The system dials out both groups of numbers simultaneously.
The ICB card dials out by allocating a free port and originating the call
on it. The system does not connect the port to the meeting, until the call
successfully completes. After the ICB card originates the call, it plays a
specific prompt and keeps repeating the prompt for a number of seconds
(determined by the administrator). The default configuration forces the
called party to respond by dialing a star * during this interval. When the ICB
card detects the correct response, it connects the call to the meeting. If the
ICB card does not detect the correct response within the defined time and
the defined number of retries, the ICB card disconnects the call.
The system limits group call-outs to the number of available ports on a
conference. When a chairperson uses a list containing 61 numbers, and
the meeting has 20 free ports, the system dials only the first 20 telephone
numbers.
Group Call-out Smart Retry - When the chairperson makes a group
call-out to the same group for the second time, the system repeats the
call-out only to numbers that are not connected in the conference. The
second call-out includes calls to the following:
•
Nortel Communication Server 1000/Communication Server 2100 Solution/Meridian SL-100

Nortel Integrated Conference Bridge: Service Implementation Fundamentals

Copyright © 2007, Nortel Networks
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128)). The system saves the information on the ICB
number of dial-out retries allowed (range: 1-3, default: 1)
time between each dial-out retry (range: 15-90 seconds, default: 30)
Note: The administrator can configure the call to complete without
requiring the called party to enter a star *. This option enables the
connection to paging systems and auto-attendants.
numbers not successfully connected in the previous group call-out

NN43001-558/555-4001-135 01.02 Standard

ICB Release 4 20 June 2007
TUI operation during an active conference 145
"Call-out