Ericsson 4422 - Manual (Page 39)

39 BusinessPhone – Ericsson Dialog 4422 IP Office
During Calls
Mute
You have an ongoing conversation. É
Press to switch the microphone on or off.
When the lamp is lit, the person on the line will not be able to hear
the conversation in your room.
Inquiry
During an ongoing conversation you want to make an inquiry to an
internal or external party.
Line
Х Ф
Press.
The first call is put on hold. z
Enter the number of the third party.
When the third party answers, you can switch between the calls,
create a conference or end one of the calls.
Refer back
You can switch between the connected parties:
Line
Х Ф 2
Switch between calls.
Line
Х Ф 1
Press to terminate.