User`s guide

36(44)
Datum/Date Rev
Dokumentnr/DocumentnrUppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked Tillhör/Referens-File/Reference
99-07-15 G
268/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
SUPPLEMENTARY SERVICE
CONNECTED LINE
IDENTIFICATION RESTRICTION
(COLR)
DEFINITION
The supplementary service COLR enables the
connected party to prevent presentation of its ISDN
number.
USE
This feature is used to restrict the presentation of the
number of the actual connected B-party at the A-party,
when call diversion is activated or the call is picked-up
by another extension.
OPERATION
System telephones
There are two alternatives to restrict the presentation
of the B-number at the A-party, at incoming calls:
Permanent mode:
(command 0149 number secrecy = YES)
The extension is configured to always restrict the
presentation of the B-number at the A-party. With the
connected message the BTU-D / BTU-B_ / MFU
informs the network that the presentation of B-number
has to be restricted at the A party.
Temporary mode:
(command 0149 number secrecy = NO)
A "number secrecy“ key can be programmed at system
telephones, and the user himself/herself may decide
whether or not to restrict the presenatation of the B-
number at the A-party. This key is also used for the
CLIR function.
For the B-number restriction at the A-party, the key
"number secrecy“ has to be activated before call
connection.
LED-status of the key “number secrecy“
Extinguished = B-number is presented at the A-party.
Steady light = B-number is restricted at the A-party
Note: No matter of which mode - temporary or
permanent - is activated, it will always have
an effect on a subscribed CLIR function
(see chapter supplementary service CLIR).
ISDN terminals
It is defined by programming whether or not ISDN
terminals on the S-interface are allowed to use the
CLIR/CORL function.
It depends on the terminal type used, how the COLR
function will be activated (see userguide).
CAPACITY / LIMITATION
If permanent mode is activated
(command 0149 Number secrecy = YES), the key
“number secrecy“ has no function and the lamp lights.