Nortel Networks NN43001-106 User Manual

Page 381

381

Autodial Tandem Transfer

Contents

This section contains information on the following topics:

"Feature description" (page 381)

"Operating parameters" (page 382)

"Feature interactions" (page 382)

"Feature packaging" (page 384)

"Feature implementation" (page 384)

"Feature operation" (page 387)

Feature description

Prior to the introduction of this feature, in order to access the Central Office
(CO) transfer feature after a Centrex/Trunk Hook Flash on an established
trunk call, the user had to manually dial the digits. This procedure permits
call completion, but is slow and requires knowledge of the full telephone
number. The Autodial Tandem Transfer (ATX) feature allows the Autodial key
to be used after a switchhook flash to out pulse Dual-tone Multifrequency
(DTMF) digits while a call is in an established state.

One application for the Autodial Tandem Transfer feature is for use in a 911
environment to transfer an emergency call from a Public Safety Answering
Point (PSAP) to the most appropriate participating emergency agency.
Manually dialing the digits by the PSAP in order to transfer the 911 call to
another PSAP can take time and is subject to misdialing. To avoid this, the
ADL key programmed with the special station number can be used to send
digits to the tandem/Centrex office to transfer the call. Using the ATX feature,
a PSAP can transfer the incoming call by pressing the Trunk Hook Flash
(THF) key, waiting for a broken dial tone, and then pressing the ADL key.

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