User`s guide

4(4)
Datum/Date Rev
Dokumentnr/DocumentnrUppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked Tillhör/Referens-File/Reference
97-10-31 C
487/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
1004
TCD-night COS
In the case of transit traffic an incoming trunk line can
be assigned external number categories in the same
way as extensions.
1015
Predigits for TCD and LCR
This command is used to assign routes and their
members a number which may be used for number
analysis. This parameter will be used primarily by TCD
and LCR.
The number given should contain 1 - 4 digits.
TCD:
The number is used when an exchange has routes to
other exchanges with completely or partly identical
number series, to decide whether the calling party is
entitled to make outgoing calls on that particular route.
Using command group 22, a number of routes (trunk
numbers) may be opened for traffic. For each direction
it is decided which of the TCD-categories 1-8 shall be
open for the respective direction.
LCR:
This parameter is used to identify the direction of an
outgoing line (trunk or tie line), i. e. to which network it
is connected - a public network, a private network or a
separate carrier network.
There is no rule which predigits have to be
programmed. However, for all lines connected to the
same network the same predigits have to be
programmed.
These predigits are only used for this network. For all
lines connected to another network other predigits
have to be programmed.
Example:
We have two trunks connected to a public
network (700, 701).
Additionally we have a tie line to a PABX-A
(702).
And finally we also have two tie lines to a
PABX-B (703, 704).
Line ! Predigits
======!===========
700 ! 00
701 ! 00
!
702 ! 505
!
703 ! 7777
704 ! 7777
Equipment
None.