Ericsson 4220 User Manual

67

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.

During an ongoing conversation:

Ô

Note: Function key preprogrammed by your system 

The system acknowledges with different tones whether the tracing 

request was accepted or rejected.