138 Call Forward External Deny
Network (ESN) Location Codes, non-message center Automatic Call
Distribution (ACD) numbers, Call Park numbers, and Direct Inward Services
Access numbers.
When Call Forward External Deny is enabled for a telephone:
•A user trying to forward calls from an analog (500/2500 type) telephone
to an external DN receives overflow tone. The telephone is not call
forwarded.
•A user trying to forward calls from a Meridian 1 proprietary telephone
to an external DN receives overflow tone and the lamp associated with
the Call Forward key of the telephone flashes. The telephone is not
call forwarded.
•A user trying to forward calls from a Meridian digital or a display
telephone to an external DN receives overflow tone. The telephone is
not call forwarded and the following message is displayed on M2317
telephones:
—Release and try again
•A user trying to forward calls from a data module to an external DN does
not receive overflow tone. Calls are not forwarded and the following
message is displayed on M2317 telephones:
—Invalid data forward number
Operating parameters
External DNs cannot be used with Call Forward All Calls if Call Forward
External Deny is enabled for the telephone.
Both ESN access codes and CDP steering codes are considered external
DNs, and cannot be used as a Call Forward All Calls DN if Call Forward
External is denied for the telephone.
The number of digits specified in LD 10 or LD 11 for the Call Forward DN
must be equal to or greater than the number of digits of any other internal
DN.
Attendant Administration cannot change Call Forward External Deny Class
of Service.
Feature interactions

Automatic Call Distribution (ACD)

If Call Forward External Deny (CFXD) is enabled, Call Forward to an ACD
DN is allowed only if the ACD DN is a message center.
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
.