Features
514
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
Terminal-related response:
The following applies provided no emergency number destination is con-
figured on the corresponding terminal:
– Desk phones and virtual terminals use the emergency destination
assigned to the node.
– Cordless phones use the emergency destination of the node at which
the phone is currently located.
– IP system phones use the emergency number destination assigned to
the Master.
9. 7. 7
Suppression of the call number display
The display of the call number to the called party can be suppressed (CLIR). CLIR
can be permanently activated or deactivated for each user in the Configuration
Manager. Each user can also use a */# function code to activate or deactivate CLIR
either permanently or only temporarily for a single call.
Detailed description of temporary CLIR
CLIR is activated temporarily using *31 before dialling an external call number. If
CLIR is already permanently activated, it can be deactivated temporarily using #31
before dialling. The permanent CLIR settings are restored once the call is com-
pleted.
Scope
Suppressing the call number display is supported only for external calls via digital
network interfaces with the DSS1 protocol.
Notes:
– The function is not executed when used in connection with ISDN sup-
plementary services in the exchange such as ECT, PARE or CD, i.e. the
call number is displayed to the called party.
– Depending on the network provider and service provider it may be
necessary to subscribe to CLIR.
Suppressing the call number display is not possible in the following cases. The out-
going call is rejected; the display reads
Not available
and the user obtains the busy
tone:
• External calls via analogue exchange interfaces
• Internal calls and calls to PISN users or virtual network PISN users
