Nortel Modular ICS 7.1, Инструкция по установке, Страница: 112 / 700

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/ Dialing plans
Modular ICS 7.1 Installer Guide N0130943 02
Dialing plans
Dialing plans allow users to enter consistent dialing
information to call other systems, or out to a public network
through another system. The type of network determines what
kind of dialing scheme is required.
The Norstar system has routing features that allow you to set
up a transparent dialing plan with other systems in a public or
private network. In a private network, you can choose to use
either a uniform dialing plan (UDP) or a coordinated dialing
plan (CDP) to determine how the system recognizes private
network dialing strings.
A networked system uses the Public DN length to determine
the number of digits that must be collected before the call is
dialed outside each node on the system. Calls routed over
private networks using CDP also use the public DNs in concert
with a destination code that determines the routing of dialed
DN. With CDP, the node identifier is included in the dialed
DN string and is unique to each node.
If you create a network-wide dialing plan using CDP:
• all telephone DNs across the network need to be the same
length (Public DN length)
• the first digit of the DN must be unique to each system, i.e.
node A has DNs 2222 to 2999, node B has DNS 3222 to
3999, and so on.
• you indicate that you are using a coordinated dialing plan
(
System Programming/Dialing Plan/Private
network
)