Telephone user interface 137

The ICB card selects the port for dialing out. The port is available if the number of ports reserved for the conference is greater than the number of conferees that have joined the conference. When all reserved ports are taken, the port can be available, if there are un-reserved ports on the ICB card and the port expansion feature is enabled for that conference. If all reserved ports are taken and there are no unscheduled ports available, the system cannot complete the call.

Note: When the chairperson dials out to another ICB conference, two ports are seized, the dial-out port of the local ICB and the dial-in port of the remote ICB. This connection can be terminated only if the chairperson drops the dial-out port of the local ICB. However, normally the dial-out call is a telephone, so the system only seizes one port.

Dial-out Authorization

The Dial-out Authorization feature enables the chairperson to connect external parties to the conference when the desired destination number is restricted.

This feature uses the Meridian Authorization feature. As such, the chairperson must be aware of outdialing restrictions and know the authorization access code (Flexible Feature Code – FFC or Special Prefix – SPRE on the CS 1000; Auth Access # on the CS 2100/Meridian SL-100).

The chairperson must enter the whole string of authorization numbers as the example in Figure 72 on page 138 shows. There are no confirmation tones or dial tone in the middle of dialing.

Nortel Integrated Conference Bridge Service Implementation Guide

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Nortel Networks 555-4001-135, 553-3001-358 manual Dial-out Authorization