AASTRA 4420 IP Basic (SIP) for MX-ONE User Guide - Manual (Page 14)

Incoming Calls
Dialog 4420 IP Basic 14
Incoming Calls
Answer calls
A ring signal and a flashing lamp indicate an incoming call.
Note: If the feature Parallel Ringing is activated, the call will
ring on more than one phone, see section “ Parallel Ringing ”
on page 15 .
Line/Hold
Calls are received on Line/Hold. u
Lift the handset.
On another extension
You can answer a call to another extension: u z
Lift the handset and call the ringing extension.
Press.
Busy tone. 8
Press.
Note: France, press
4
; Sweden, press
6
or Ô
Call Pickup Press to answer.