User`s guide

1(2)
Datum/Date Rev
Dokumentnr/DocumentnrUppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked Tillhör/Referens-File/Reference
99-07-15 A
170/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
SEA/EBBMP M.Plattner
SEA/EBBMP ASB 150 02
SEA/EBBX/E
DDI NUMBER TRANSLATION
Definition / Use
This feature supports an individual number translation
of the external network DDI numbers to corresponding
internal directory numbers and vice versa.
The reason for a number translation is relevant in
cases, when the DDI number range provided by the
public network does not fit, or is not available for use
as internal number range within the system.
Further for a scenario where the PBX may be
connected to two different network operators with
different numbering plans there will be a possibility for
usage of two different number translation tables.
Operation
The number translation is provided in following way:
A programmable cross reference table (including two
different number translation tables) allows up to 400
internal directory numbers to be translated to
corresponding external DDI numbers.
The number translation can be made both for
incoming and outgoing call direction per dedicated
trunk:
• an external DDI number is translated to the cor-
responding internal 1-4 digit directory number.
• an internal directory number is translated to the
corresponding external (DDI) number when cre-
ating and providing the calling/connected line
identification.
Capacity / Limitations
The feature is independent of used line or register
signalling, i.e. available for all types of automatic
incoming DDI calls.
It offers two different number translation tables and
allows up to 400 internal directory numbers (max. 200
intervals) to be translated to corresponding external
DDI numbers per number plan.
Programming
These commands are only accessable via RASC:
2260
DDI/CN* number translation
The number translation tables, ’DDI1’ and ’DDI2’, allow
programming of two separate number translations for
up to 400 internal directory numbers in up to 200
intervals.
Each trunk can be programmed (command 1804) with
a number reference value to one or both of these
translation tables. The contents of these tables are
used for the translation of external DDI/CN numbers to
corresponding internal directory numbers and vice
versa.
If an external or internal number is not found in the
tables, no translation can be done, and the ordinary
number analysis will be performed for the received
external DDI/CN number and the internal dir. number
is used for the calling/connected identification
services.
*) This feature will also be available for the private
network calls, i.e. for CN numbers.
Table syntax
’Int. Dirno’
- 1-4 digit internal directory number
- the number must be defined in the system
- a number interval is defined by separating two
directory numbers with a comma (e.g. 200,209)
’DDI1 no’,’DDI2 no’
- 1-8 digit external (DDI/CN) number used in the
public and/or private number plan
- for a number interval only the first number has
to be entered
170.fm
Database reference