120 Call Forward by Call Type
CFCT is allowed or denied for each telephone in LD 10 or LD 11 with
Class of Service (CFTA/CFTD). If CFCT is allowed (CFTA), the forwarding
destination is also defined in LD 10 or LD 11.
Once enabled, CFCT requires no intervention. How the system initiates Call
Forward by Call Type is described below.
When a call is presented to a telephone, the telephone is checked for
the appropriate Class of Service (Hunting Allowed (HTA), Call Forward
No Answer (FNA), Call Forward by Call Type (CFTA). The incoming call is
then checked to determine if it is a telephone, DISA, or trunk call. If it is a
trunk call, the trunk route is checked to determine whether the call should
be treated as an internal or external call. After these checks, internal calls
are forwarded to the FDN or Hunt DN of the telephone. External calls are
forwarded to the External Flexible DN (EFD) or External Hunt (EHT) DN
of the telephone.
The order in which the system handles no answer and busy calls is an
important consideration when implementing this feature. The order of
precedence is listed below.
Calls to telephones that do not answer:
•Call Forward All Calls
•Message Waiting
•Call Forward No Answer
•Attendant Recall
Calls to busy telephones:
•Call Forward All Calls
•Hunting
•Call Waiting or Camp-On
•Message Waiting Forward Busy
•Call Forward Busy
Operating parameters
Attendant Administration does not support the entry of the new EFD and
EHT Class of Service required for Call Forward by Call Type.
The following trunk routes can be defined as internal or external call types
for CFCT: CO, DID, FX, ATVN, CCA, TIE, WATS, and CSA.
Incoming DISA calls are always treated as internal calls irrespective of the
trunk route class mark defined for the incoming trunk.
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
.