Avaya BCM 4.0 Networking Guide de configuration télécharger pdf (Page 254)

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254 Chapter 24 Dialing plans

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A dialing string is the numbers that the caller physically enters on a telephone or programs onto a

memory key. This can also include numbers the system adds to a dial string when a call goes

through call routing.

This process also includes how the receiving system reads the sequence. All of which means that

coordination is required at both ends of the call to ensure that calls are routed correctly. This is

especially important if calls need to be routed through your system, or through a remote system, to

reach another node on the network.

Basic numbering: The first numbering that you set is your DN length (Start DN length) and

Start DN and Public and Private Received # length. DN length and Start DN information is

entered when the system is initially set up. These numbers can be changed after the system has

been set up, but only at the risk of compromising other numbering in the system. If your system is

part of a network, these numbers must be coordinated with the other nodes in the network to

ensure that the network dialing plans are consistent. The Public and Private Received Number

lengths take their sequence from the initial DN length, but this can be changed to accommodate

local dialing requirements, the Private length should mirror the DN length, except in special

circumstances. Refer to “Incoming call routing” on page 260.

Remote access: When you set up lines that do not offer DISA directly on the line, you can

determine if remote access prompts with DISA or allows auto answering. This determines the

Public/Private Auto DN and Public/Private DISA DN settings, which are set under Telephony >

Dialing Plan > Public Network and Private Network. These numbers will have the same first

number as you specified in the Start DN and be of the same length. Remote callers dial the system

public or private access number, and then dial either the Private/Public Auto DN or Private/Public

DISA DN, as determined by the line setup.

Incoming calls: The Private Dialing Plan provides the special codes that identify the system to

calls coming over private PSTN or VoIP trunks. Calls that do not match the private dialing plan

information, are not accepted by the system.

Variable Example settings

Start DN 2 (221)

DN length, Received # length

Private length

Public length (max)

12 (North America)

Variable Example or default settings

Private Auto DN 2XX

Public Auto DN 2XX

Private DISA DN 2XX

Public DISA DN 2XX

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Avaya BCM 4.0 Networking Guide de configuration Page 254

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