Nortel-networks NN43001-106 Manual de usuario Pagina 79

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10/20 Digit ANI on 911 Calls
Contents
This section contains infor mation on the following topics:
"Feature description" (page 79)
"Operating parameters" (page 82)
"Feature interactions" (page 82)
"Feature packaging" (page 82)
"Feature implementation" (page 84)
"Feature operation" (page 85)
Feature description
This feature brings the system into compliance with the Federal
Communications Commission (FCC) decision that requires a circuit
switched network, working as a Public Safety Answering Point (PSAP),
to accept a 10 or 20 digit Automatic Number Identification (ANI) when
terminating 911 calls.
10 digit ANI feature
The 10 digit ANI feature addresses the increasing number of Numbering
Plan Areas (NPAs) in North America. The increasing number of NPAs
requires that a single PSAP must be capable of handling multiple NPAs
within its jurisdiction.
The 10/20 Digit ANI on 911 Calls feature changes the ANI format to include
the NPA in the ANI field. A single PSAP can handle any number of valid
NPAs with the 10 digit format.
20 digit ANI feature
The 20 digit ANI feature addresses the problem of accurately determining
the location of a wireless calling party dialing 911.
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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