Nortel Networks NN43001-106 Incoming calls, Tandem Calls Incoming ISDN calls, Incoming non-ISDN calls

Feature description 325
Incoming calls
An incoming ISDN call is recognized as a CPPO call (that is, it carries
the Privacy Override Indicator) if the Presentation Indicator field is set to
"Presentation Allowed" in the Calling Party Number IE and if the CPND
Indicator is set to "Presentation Allowed" in the Display IE (if it exists).
When an incoming call is on a non-ISDN route, the system does not receive
the Privacy Override Indicator.
Tandem Calls
Incoming ISDN calls
ISDN to ISDN tandem For an incoming call tandeming through the
system, any incoming Privacy Override Indicator is only repeated to the
outgoing trunk route that also has CPPO provisioned.
When an incoming ISDN trunk call is tandemed through an ISDN trunk to a
system, the Presentation Indicator or the CPND Indicator, received from the
incoming ISDN trunk, is tandemed to the outgoing ISDN trunk.
When an incoming ISDN trunk call is tandemed through an ISDN trunk to a
CO, the Presentation Indicator received from the incoming ISDN trunk is
tandemed to the outgoing ISDN trunk. If the Display IE with the CPND
Indicator set to "Presentation Allowed" is received from an incoming ISDN
trunk, the Display IE, containing the Call Party Name, is sent across in the
SETUP message tandemed to the outgoing ISDN trunk.
ISDN to non-ISDN tandem When an incoming ISDN trunk call is
tandemed to a non-ISDN trunk, the incoming call is treated as a CPPO call
only if both the CLID and CPND Indicators are set to "Allowed". Otherwise,
the call is treated as a CPP call.
Incoming non-ISDN calls
For incoming non-ISDN calls, the system does not receive the Privacy
Override Indicator.
When a call on an incoming non-ISDN route is tandemed on the system,
the call is tandemed based on how the CPP flag (TCPP) prompt is defined
in the Route Data Block for the outgoing route.
When TCPP is set to YES, an incoming non-ISDN call tandemed to this
route is treated as a CPP call.
When TCPP is set to NO, an incoming non-ISDN call tandemed to this route
is treated as a CPPO 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
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