AASTRA 4420 IP Basic (SIP) for MX-ONE User Guide - Manual (Page 25)

25 Dialog 4420 IP Basic
During Calls
During Calls
Mute
É
Press to switch the microphone on or off.
When the lamp is on, the person on the line cannot hear what is
being said near to your phone.
Monitoring
This feature lets you listen to the loudspeaker while the handset is
on hook, e.g. while waiting for a called busy person to become free
or passive listening to an ongoing telephone conference, etc.
You have an ongoing conversation via the handset:
Press to switch the loudspeaker on.
d
Replace the handset.
When the Speaker key lamp is on, you monitor the call via the
loudspeaker. The handset (including the microphone) is
disconnected. Also the Mute key lamp is on to inform that there is
no microphone connected.
Note: You can adjust the volume, see section “ Settings ” on
page 53.
Press to end the call.
From Monitoring to handset u
Lift the handset.
Continue your conversation via the handset.