Programming And Restrictions - Nortel Modular ICS 6.0 Installer's Manual

Nortel modular ics 6.0 digital system package

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For example:

When a call comes in on ETSI ISDN and is returned to a

destination being serviced by ETSI ISDN, BTNR 191,

Analogue or DASS2 lines, then ETSI Call Forward (CFU,

CFB or CFNR) is used.

When a call comes in on ETSI ISDN and is returned to a

private network destination over DPNSS, then External

Call Forward (ECF) is used.

When a call comes in on DPNSS 1 and is returned on any

line type except DPNSS 1, ECF is used. If that call is

returned over DPNSS, however, then DPNSS 1 Diversion

(DIV) is used. Refer to Network Call Diversion on page

When a call comes in on any other line type, such as

AC15A, then again ECF is used. Note that under certain

line conditions, ECF will not work; refer to Line

Redirection restrictions.

Note: In all cases, if NCD fails due to network errors or

rejections, Norstar invokes ECF. If an outgoing line is

unavailable, Norstar routes the call to the line's prime

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.

ETSI MCDN and network features / 167

Modular ICS 6.0 Installer Guide