User`s guide

15(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
Sending of the Modified Telephone Num-
ber
Input
• Internal Access Code [8401]
• Predigits for carrier access [8402]
• Arranged Destination Number [8415]
Output
ASB 150 02 uses the Internal Access Code [8401] to
seize a line and transmits the number as specified in
Number Arrangement [8415].
Least Cost Routing uses only lines with the same
Predigits, as specified in „Predigits for carrier access“
[8402]. This Predigit may be used for an additional
number conversion for carriers that do not use a
Carrier Access Code (except the PTT), e.g. tie lines,
direct lines to other carriers than the PTT. The
information provided by the Destination Number Cross
Reference Table is used if the number conversion is
necessary.
Least Cost Routing Options
Dial tone after Entering the Internal Access Code
Least Cost Routing needs the desired destination
number for analysis. Therefore, it is possible to
generate a dial tone [2034] after having received the
Internal Access Code. This encourages the user to
enter the remaining digits of the destination number.
Calling Least Cost Routing
Extensions may have the authority category Override
Least Cost Routing [0152]. Using the function Calling
Least Cost Routing it is nevertheless possible to
benefit from Least Cost Routing. When selecting the
Least Cost Routing Directory Number [5623] prior to
the Internal Access Code and the desired directory
number, the call is subjected to the function Least Cost
Routing.
The default directory number for calling Least Cost
Routing is „no number programmed“.
Direct Access to Carriers
The Number Analysis examines whether the dialled
directory number starts with a Carrier Access Code.
What happens if somebody dials the directory number
of a specific carrier? Least Cost Routing examines if
the extension has the authority category Direct Carrier
Access LCR [0153].
Extension does not have COS Direct Carrier Access
LCR
Least Cost Routing uses the table Detecting Carrier
Access Codes [8405] to change the dialled Carrier
Access Code into a Public Destination Number. Then,
a Number Analysis is executed.
Extension has COS Direct Carrier Access LCR
The carrier is seized. Least Cost Routing arranges the
number [8415 Arranging number to send] according to
the carrier’s requirements.