Programming And Restrictions - Nortel ICS Install Manual

188 / ETSI, MCDN and Network features
referred to as Line Redirection. This is programmable by
the user.
• Call Forward on Busy (CFB)—implemented on Norstar
Call Forward Busy.
• Call Forward on No Response (CFNR)—implemented on
Norstar Call Forward No Answer.

Programming and restrictions

NCD features are accessed through existing Norstar features.
Extensions requiring redirection must be programmed
individually to either CFAC or SLR. CFB or CFNA must be
set during programming. Allow redirect must be set to Yes
for each extension, in Terminals&Extns/Capabilities.
Note: Any other programming applied to specific lines and
extensions take precedence, for example
Restrictions(extns) under Terminals&Extns.
NCD is used as long as the affected lines are ETSI ISDN, and
the affected DIA lines are accessible via ISDN lines. Incoming
calls are diverted back to the ISDN. If NCD fails due to
network errors, ECF is invoked. If ECF cannot be executed,
the incoming call is routed to the prime extension for the line.
An extension with CFB, CFNA and CFAC programmed will
give priority to CFAC for diversion.
Modular ICS 7.1 Installer Guide
If a line is configured to appear on several
extensions with redirection programmed,
predicting which extension will divert the call is not
possible. This should be considered during system
configuration.
ATTENTION!
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