Nortel Networks NN43001-106 User Manual

Page 119

119

500/2500 Line Disconnect

Contents

This section contains information 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 period
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 trunk 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