324 Calling Party Privacy Override
When the CPPO Flexible Feature Code is dialed prior to the normal dialing
sequence, the call is marked as a CPPO call. The CPPO Flexible Feature
Code is then removed from the dialed digits stored in the call register. If the
outgoing trunk route provisions CPPO, then the Privacy Override Indicator
is sent to the far end, and the Calling Party Number and Name information
is displayed on the receiving telephone. If the outgoing trunk route does not
provision CPPO, the call does not carry the Privacy Override Indicator.
The following example illustrates Calling Party Privacy Override functionality:
Step Action
1Set A, a Meridian 1 proprietary set with Class of Service set to
CLBA, goes off-hook.
2Set A dials the Calling Party Privacy Override Flexible Feature Code,
defined in Overlay 57. Calling Party Privacy Override is initiated.
3Set A dials the destination number for Set B.
4The call rings on Set B.
5The calling party information of Set A is presented on the display
screen of Set B.
—End—

Outgoing calls

For an outgoing non-ISDN trunk call, the Privacy Override Indicator is
defined on the outgoing trunk route. The CPPO Flexible Feature Code is
outpulsed to the far end provided that the outgoing trunk route provisions
CPPO. If CPPO is not provisioned on the trunk route, then the call does not
carry the Privacy Override Indicator.
For an outgoing ISDN call from one system to another, the Privacy Override
Indicator is represented when the Presentation Indicator field is set to
"Presentation Allowed" in the Calling Party Number Information Element
(IE) and the Call Party Name Display (CPND) Indicator field is set to
"Presentation Allowed" in the Display IE.
For an outgoing ISDN call to the Central Office, the Privacy Override
Indicator is represented when the Presentation Indicator field is set to
"Presentation Allowed" in the Calling Party Number IE and when the CPND
information is included in the Display IE.
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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