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Feature Reference
Uniform Dial Plan
Administrator’s Guide for Avaya Communication Manager 1749
November 2003
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
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.
•
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.
•
If no UDP entry exists for a particular extension or range of extensions, those extensions are
considered local.
Screen Field
Dial Plan Analysis Table
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All
Dial Plan Parameters screen
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UDP Extension Search Order
Uniform Dial Plan Table
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All
AAR and ARS Digit Analysis Table
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All
AAR and ARS Digit Conversion
Table
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All
Node Number Routing
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Route Pat
Extension Number Portability
Numbering Plan
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All
Route Pattern
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All