AASTRA 4220 Lite for BusinessPhone User Guide EN - Manual (Page 28)

During Calls
BusinessPhone – Dialog 4220 Lite / Dialog 3210 28
Monitoring
Note: Dialog 3210 only.
You have an ongoing conversation via the handset. s
Press to switch the loudspeaker on.
When the lamp lights, the loudspeaker monitors the call.
Note: When the loudspeaker is on, the microphone is
automatically switched off in the handset.
From monitoring to handset ( s
Press to switch the loudspeaker off.
Continue your conversation via the handset.
Mute
You have an ongoing conversation. É
Press to switch the microphone on or off.
When the lamp lights, the caller will not be able to hear the
conversation in your room.