Feature interactions 565

China - Supervised Analog Lines

If a terminal device answers an incoming call and then initiates a conference,
no battery reversal answer supervision signal is extended to the terminal
device when new parties of the conference answer. However, a hook flash
disconnect supervision signal is extended to the terminal device when the
last party in the conference disconnects.
If a terminal device initiates a conference, battery reversal answer
supervision is extended to the terminal device when the first party answers.
No polarity change is made when additional parties are added to the
conference. The polarity is reverted to normal when the terminal device
disconnects or when the last party in the conference disconnects.
China - Toll Call Loss Plan
Toll Loss Plan is not supported when a conference is in progress. When
a local party connecting to a toll call makes a conference call, the pad
levels on the ONS line card are switched back to their original (non-toll
call) values. Then, the existing Conference algorithm takes care of the
necessary pad switching. This would not alter the existing conference call in
terms of loss levels.
When a conference call joins in a toll call, the Toll Loss Plan is not effective.
When a conference call involving a toll call becomes a two-party call, the
Toll Loss Plan is applied on the set and DTI2 trunk.
The conference pad switching algorithm is not changed for the Toll Loss
Plan, since the 7 db requirement does not apply to a Conference call.

Controlled Class of Service

If Controlled Class of Service (CCOS) is activated at a telephone involved in
a conference call, established Central Office or toll calls are not affected.
The CCOS restriction level is applied immediately, and no new calls can be
initiated from the conference. The telephone remains in the CCOS active
state after the conference is terminated.

Controlled Class of Service, Enhanced

If Controlled Class of Service (CCOS) is activated at a telephone on a
conference call, established Public Exchange/Central Office or toll calls are
not affected. The CCOS restriction level is applied immediately; however,
no new calls can be initiated from the conference. That telephone remains
in the CCOS state after the end of the conference.
Dial Access to Group Calls
The Conference feature cannot be applied to a Group Call.
Nortel Communication Server 1000
Features and Services Fundamentals — Book 2 of 6 (C)
NN43001-106 02.04 Standard
Release 5.5 9 May 2008
Copyright © 1994–2008, Nortel Networks
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