Emergency Mode; Malicious Call Tracing - Ericsson DT290 User Manual

Other Useful Facilities

Emergency mode

In the event of an emergency, the operator can switch the
exchange into emergency mode, during which only pre-
programmed extensions are permitted to make calls.

Malicious Call Tracing

If you are disturbed by malicious or bothersome external incoming
calls, you can request number tracing from the network provider.
You can invoke tracing during or after an ongoing conversation.
The external line can be held for a limited period of time.
Order
B
During an ongoing conversation:
Press.
*39#
Dial tone.
Press.
The system acknowledges with different tones whether the tracing
request was accepted or rejected.
DT290 65