Uniform Dial Plan - Avaya Communication Manager Administrator's Manual

Uniform Dial Plan

Uniform Dial Plan (UDP) provides a common 3, 4, 5, 6, or 7-digit dial plan - or even a combination of
these - that can be shared among a group of media servers or switches. The UDP applies interswitch
dialing and intraswitch dialing. UDP can be used with an ETN; main, satellite, and tributary servers or
switches; and DCS. In a nutshell, UDP provides extension-to-extension dialing among 2 or more
private-switching systems. Note that for DCS, a uniform 4 or 5-digit dialing plan must be used.
Administering UDP
Following is a list of the forms and fields you need to consider when administering UDP
Screen
Dial Plan Analysis Table
Dial Plan Parameters screen
Uniform Dial Plan Table
AAR and ARS Digit Analysis Table
AAR and ARS Digit Conversion
Table
Node Number Routing
Extension Number Portability
Numbering Plan
Route Pattern
Detailed description
UDP routes calls off the local server or switch by converting the extension number into a private-network
or public-network number. The extension initially dialed by the user can be 3, 4, 5, 6, or 7 digits. The
private-network or public-network number is formed by deleting digits from and then inserting digits to
the front of the extension. Three types of conversion are supported: AAR, ARS, extension number
portability (ENP) and EXT.
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For AAR and ARS, the resulting number is analyzed and routed as a private-network (AAR) or
public-network (ARS) number. If you wish to block further digit conversion by AAR or ARS, you
can enter n(o) in the Conv(ersion) column.
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For ENP, a node number must be entered. Node-number routing uses this number to determine
which route pattern should be used to route the call. If the original extension is 4, 5, or 6 digits, an
ENP code is chosen based on the first 1 or 2 digits of the dialed string. Because it is not used for
routing, the ENP code can be independent of location.
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If EXT is entered, the resulting number (which may be unchanged from the dialed extensions) is
routed over again as an extension. If you wish to block further digit conversion by UDP, you can
enter n(o) in the Conv(ersion) column.
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If no UDP entry exists for a particular extension or range of extensions, those extensions are
considered local.
Administrator's Guide for Avaya Communication Manager
November 2003
Field
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UDP Extension Search Order
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Route Pat
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Feature Reference
Uniform Dial Plan
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