User`s guide

7(20)
Datum/Date Rev
Dokumentnr/DocumentnrUppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked Tillhör/Referens-File/Reference
98-01-31 B
321/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
Public Destination Number Table
This table relates public telephone numbers (= public
destination numbers) to Destination Number Groups.
A Destination Number Group contains public
destination numbers having the same Cost Level
Scheme, e.g. local calls.
Least Cost Routing checks the entered number
against the Public Destination Number Table [2240] if
no match has been found in the Destination Number
Cross Reference Table. It is not necessary to specify in
the Public Destination Number Table any Destination
Number Groups that are already specified in the
Destination Number Cross Reference Table.
The number analysis searches for a matching
destination number. The result is a Destination
Number Group that represents the entered destina-
tion number. The result is the input for the carrier
analysis and the cost analysis.
The Destination Number Group 249 is already
specified in the Destination Number Cross Reference
Table (destination number = 022281100…). The
Destination Number Group 249 is covered by the
carriers „PTT B“, „Ferrari B“ and „Tie Line Vie“.
John M. calls the United States (the leading digits of
the destination number are „001“). Thus, the Destina-
tion Number Group is „111“.
Carrier Analysis
Least Cost Routing checks the Carrier Definition Menu
for carriers supporting the Destination Number
Groups. The carrier analysis finds all carriers that offer
a connection to the Destination Number Group.
Input for the analysis
• The Destination Number Group found in the De-
stination Number Cross Reference Table or in
the Public Destination Number Table constitutes
the input for the carrier analysis.
• What type of Internal Access Code (Route Ac-
cess Code or the directory number of a single
trunk or tie line) has been entered by John M.?
Database for the analysis
• Tenant group [0151] of the extension that has en-
tered the number.
• Which carriers are open for a specific tenant?
[8420]
• General Call Cost Profile [8440]. The Call Cost
Profile lists all Destination Number Groups that
can be accessed by the carrier.
• Tenant-Specific Call Cost Profile [8428] if a ten-
ant has special agreements with a carrier.
Output of the analysis
• The output of the analysis is a number of carri-
ers (possible carriers) that offer connection to the
Example for a Public Destination Number Table
Predigits: 0
Destination Number Destination Number Group Covered by
1-9
0
01
02
00
001
0
10
11
12
100
111
PTT A
PTT B
PTT B, Ferrari A
PTT B, Ferrari B
PTT C
PTTC, Ferrari C