User`s guide

4(8)
Datum/Date Rev
Dokumentnr/DocumentnrUppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked Tillhör/Referens-File/Reference
99-02-17 A
363/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
CROATIA -
ADAPTATION OF THE CN
NUMBERING PLAN
Definition
This feature increases the numbering plan functionality
for Corporate Networks by using virtual 5-8 digit
numbers for the internal ASB 150 02 numbering
structure.
Use
The feature was designed for the Corporate Network
(CN) of the Ministary of the Interior of the Rebublic of
Croatia, on condition that all systems of the CN
support a 5 digit internal numbering plan.
The feature can also be used in other CN networks
where it is required to support in the local PBXs an
internal numbering structure of up to eight digits .
However we recommend to consider the limitations of
the feature ( see separate chapter ) before offering this
solution to the customer, because this is a solution
with a virtual numbering plan, and most of the internal
functionalities can not be applied to virtual numbers.
Operation
To handle the virtual numbers in the system, a number
translation of the sent calling/connected CN number
as well as of the received CN number is necessary.
The number translation for outgoing calls is done by
using the 4 digit internal directory number, commands
2073 and 2074 for removing and prefixing digits,
respectively a common abbreviated number for the
number conversion at incoming calls terminated within
the own system.
Outgoing CN calls
The composition of the virtual directory number being
sent out to the CN is done in the following way:
Up to 3 digits of the internal directory number can be
removed (command 2073) and prefixed with up to four
digits of the Local Private Code (LPC, command
2074).
(LOC)+LPC+"edited directory number"
LOC: is the own Location Code which is sent to the
CN in case of number types "unknown" and
"regional level 1"
LPC: is a non diallable number in the system, it is only
used for prefixing
Example:
Virtual number plan of the PBX: 54000-54999
Internal directory number plan: 1000 - 1999
Local Private Code: 54
Number presentation at RL0
Directory number: 1234
Digits to be removed: 1
"Edited directory number": 234
Local Private Code: 54
Virtual number: 54234
(presented CN number)
Number presentation at RL1
Directory number: 1234
Digits to be removed: 1
"Edited directory number": 234
Local Private Code: 54
Location Code: 876
Virtual number: 87654234
(presented CN number)