Nortel 1000 Features And Services Fundamentals page 440

440 China - Toll Call Loss Plan
Operating parameters
The Toll Loss Plan is only supported when a pure Intelligent Peripheral
Equipment (IPE) Loss Plan for China is used. Existing pad levels for DTI2
toll calls with Hybrid Loss Plan for China are unchanged.
This feature is only supported for a Class 5 system.
The Toll Loss Plan is only supported on DTI2 MFC trunks.
If an initialization occurs, the toll call stays connected, but the toll status is
lost. The pad levels are reinserted as if it is for a non-toll call.
The Toll Loss Plan is not supported when a conference call is in progress.
China specific IPE 500/2500, DTI2, and MFC line cards are required.
Feature interactions
Call Diversion (Call Transfer, Call Forward All Calls, Call Forward Busy,
Call Forward, Internal Calls, Call Forward No Answer, Hunting)
Toll pad switching is also provided after call diversion has been completed.
When the toll call is diverted, the diverted party's pad level is switched back
to its original value (unless it is an OPS station using dynamic switching).
The Toll Loss Plan is applied again for the new call as if it is a direct call.
For Call Transfer, it is provided after the transferring party completes the
transfer and drops out. For Call Forward or Hunting, it is provided when the
forwarding or hunting call is answered.
Conference
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.
Copyright © 1994–2008, Nortel Networks
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Nortel Communication Server 1000
Features and Services Fundamentals — Book 2 of 6 (C)
NN43001-106 02.04 Standard
Release 5.5 9 May 2008