Administrator's Guide

Uniform Dial Plan
Issue 5 October 2002 1915555-233-506
Example of how UDP works
To administer, assign each UDP code:
■ To a private network location code (RNX) or node number. (The RNX is
equivalent to an office code of a central office in a public network. This
RNX determines how a UDP call is routed.)
■ Assign each UDP code as either local or remote to the switch.
To understand the function of a UDP, review the following example.
A given station is called using the same 5-digit extension regardless of where in
the ETN the call originates. Three switches are included in the example. Each has
been assigned a list of RNX and UDP codes. See Figure 64 on page 1916.
SWITCH RNX UDP CODE
A 224 41
C 223 51
C 223 52
B 222 60
B 222 61