
119
500/2500 Line Disconnect
Contents
This section contains infor mation on the following topics:
"Feature description" (page 119)
"Operating parameters" (page 121)
"Feature interactions" (page 122)
"Feature packaging" (page 123)
"Feature implementation" (page 124)
"Feature operation" (page 124)
Feature description
500/2500 Line Disconnect
500/2500 Line Disconnect is invoked when the system detects
on-hook/disconnect supervision from a party connected to an analog
(500/2500-type) port. Dial tone is sent to this port for a specified per iod
of time (the default is six seconds) which is defined in LD 15 at the Line
Disconnect Tone Timer (LDTT) prompt.
It is used when the analog (500/2500-type) port is connected to an
automated attendant or voice mail. It allows the system to know that it is not
connected to a telephone, and to disconnect if the other telephone has hung
up (for example, during an automated message or a voice mail message).
An analog (500/2500-type) port with LDTA Class of Service receives
disconnect tone in the following cases:
•
an incoming internal call is placed to an LDTA port and then disconnects
•
incoming call from a trunk with disconnect supervision is placed to an
LDTA port and then the incoming tr unk disconnects, or
Nortel Communication Server 1000
Features and Services - Book 1 of 6 (A to B)
NN43001-106 01.04 Standard
Release 5.0 27 July 2007
Copyright © 2007, Nortel Networks
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