NEC NEAX 2000, Programming Manual

Page: 1168 / 1200

ND-91285-001(E)
DECEMBER, 1999
Page 386
Revision 1.0
(1/4)
UNIFORM NUMBERING PLAN
GENERAL DESCRIPTION
In the numbering plan for a network to be configured through the use of Tie Lines, a Uniform Number-
ing Plan (UNP) is employed. When UNP is employed, a station user from any PBX within the network
can call a desired party by using a uniform dialing method based on the UNP.
STATION APPLICATION
All stations
OPERATING PROCEDURE
The following describes two applications of the UNP:
Station Number
As shown in Figure 1, all the stations of each PBX connected using Tie Lines are assigned a Station
Number of 3 or 4 digits, and the location of the PBX can be identified by the first two digits of the Sta-
tion Number.
When this numbering plan is employed, a station user from any PBX within the network can call a
desired party using a uniform dialing method.
Office Code and Station Number
When this numbering plan is employed, each PBX in the network is assigned a 1, 2, or 3-digit Office
Code and each station in the PBX is assigned a 2, 3, or 4-digit Station Number, as shown in Figure 2.
Normally, when calling another station, the calling station dials as follows:
P+/- xxx- xxxx
Access
Code Office
Code Station
Number
+: 2nd DT
-: No Tone
x: 0 - 9
p: 0 - 9