NEAX2400 IPX Feature Programming Manual
NDA-24297, Issue 1
Page 1041
Uniform Numbering Plan - CCIS
U-5
U-5
Uniform Numbering Plan - CCIS
General Description
In a CCIS network, a Uniform Numbering Plan enables a user to call any other station in the network using a
Uniform Numbering system. Two alternative numbering plans are provided:
•
In the first plan, the user dials a four or five-digit station number. The node in which the called station is
located is identified by either the first digit or the first two digits of the station number. More than one
location number can be assigned to a particular node.
•
In the second plan, the user dials a single-digit access code, a three-digit code identifying the particular node
in the CCIS network, and a two, three, or four-digit station code.
Operating Procedure
To call a station at another office using Numbering Plan 1:
1.
Lift the handset; receive dial tone.
2.
Dial the four or five-digit telephone number.
3.
The call is routed to another node according to programmed routing information, and the called station
rings.
4.
The called station answers and the parties are connected.
To call a station at another office using Numbering Plan 2:
1.
Lift the handset; receive dial tone.
2.
Dial access code + office code - station code:
X-XXX-XX, or
X-XXX-XXX, or
X-XXX-XXXX
3.
The call is routed to the node designated by the Office Code. The called station rings.
4.
The called station answers, and the parties are connected.
Service Conditions
1.
Numbering Plan 1:
a.) All telephone numbers must be four or five digit numbers.
b.) The location of the PBX can be identified by either the first digit or the first two digits of the
telephone number.
2.
Numbering Plan 2:
a.) The calling and called party’s LCD can display the office and station codes or the station code
only. This option is selected via the Maintenance Administration Terminal (MAT).
b.) Within the same PBX, a station-to-station call is made by simply dialing the two, three, or four-
digit telephone number.
3.
The maximum number of digits per telephone number is eight.
