Product description 27
Nortel Integrated Conference Bridge Service Implementation Guide
Ethernet application
ICB Ethernet use has the following characteristics:
• The ICB Ethernet connection is separated from the external LAN
traffic by a firewall.
• The Ethernet Adapter connection for ICB is NT5D52AA for the IPE
module application.
• The Ethernet provider assigns the IP address for the ICB. Enter the
IP address from the Maintenance terminal.
• To access the ICB CLI over the Ethernet, use a TELNET client on a
PC workstation or in the LAN.
ICB operation
The ICB provides flexibility in configuring conferences. Configure
conferences as follows:
• pre-scheduled conferences with a fixed number of ports and
start/stop times
• pre-scheduled conferences with a variable numbers of ports, where
ports are added when required (if available) and subtracted by the
system automatically as conferees leave the conference
• permanent bridges with fixed numbers of ports that can be used
without pre-scheduling the conference
The minimum duration of a conference is 15 minutes and the maximum
duration of a time-limited conference is 12 hours. The conference
starting time and duration can be scheduled in increments of 15
minutes.
The ICB card continuously monitors the audio signal level received
from each conferee and selects the two loudest signals for
transmission. The two loudest signals are summed and inserted into
the PCM sample prior to their transmission to other conferees. This
implementation of the two loudest signals improves the interrupting
capability of a conference connection and allows normal two-way
conversation that all conferees can hear.
In addition to the conferee timeslots, the ICB provides a timeslot
between the MPU and the DSP. This timeslot transmits message
prompts, entry and exit tones, or both that the system broadcasts to all
conferees when requested by the MPU.