Nortel 1000 Features And Services Fundamentals page 286

286 Call Waiting Redirection
Operating parameters
The existing Call Waiting and Call Forward No Answer limitations apply to
the Call Waiting Redirection feature. The Call Forward No Answer feature is
used by the Call Waiting Redirection feature to redirect "no answer" calls
given Call Waiting treatment.
Although the Call Waiting treatment is applied to a busy DN, the CFNA
call redirection treatment given by the Call Waiting Redirection feature
is for a "no answer" presentation. The unanswered Call Waiting call is
treated as a call presented to an idle "no answered" DN. Calls redirected to
messaging services or sets with displays are provided with the "no answer"
call redirection reason.
The existing implementation of Call Forward No Answer is used to select
the TN with the CFNA DN for the "no answer" Call Waiting call. Calls are
redirected according to the call type (internal or external) as defined at the
designated call redirection TN chosen by CFNA.
Feature interactions
Automatic Timed Reminders
Automatic Timed Recalls
When CFNA is active, the Slow Answer Recall timer begins only after the
call reaches its final destination. CFNA has precedence over Attendant
Recall for attendant-extended calls. Irrespective of the relative timeout
intervals for each feature, ringing continues as long as allowed by CFNA
for sets with CFNA enabled.
Since the Call Waiting Redirection feature applies CFNA treatment to a
Call Waiting call, the Call Waiting Redirection feature also has precedence
over the Call Waiting recall timer.
Basic Rate Interface
The Call Waiting Redirection feature is not applicable to Basic Rate Interface
(BRI) terminals. However, an ISDN BRI terminal may redirect a call using
hunting or CFNA.
Call Forward All Calls
Call Forward, Internal
Call Forward All Calls and Internal Call Forward both have precedence over
Call Waiting and the Call Waiting Redirection feature.
Call Forward and Hunt by Call Type
If Call Forward and Hunt by Call Type (CFCT) is enabled with Call Forward
No Answer and Call Waiting Redirection, "no answer" internal calls receiving
Call Waiting treatment are routed for CFNA treatment to the Flexible CFNA
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