Ericsson DIALOG 4220 - Manual (Page 67)

67 Dialog 4220 Lite/Dialog 4222 Office
Other Useful Features
Multiple represented directory number
Your extension number can be programmed on a dedicated key on
other system telephones, i.e. the number is “represented” on these
phones.
This means that incoming calls to your extension can be answered
on any of these other phones by just pressing the dedicated key.
The dedicated key can also be assigned the possibility to call your
extension when pressed. This function has to be programmed by
your system administrator.
Malicious Call Tracing
If you are disturbed by bothersome or malicious 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
During an ongoing conversation:
Mal. Call Tracing
Ô
Press.
Note: Function key preprogrammed by your system
administrator.
The system acknowledges with different tones whether the tracing
request was accepted or rejected.