AASTRA 4422 IP Office for BusinessPhone User Guide - Manual (Page 42)

During Calls
BusinessPhone – Dialog 4422 IP Office 42
Individual Hold
You have an ongoing conversation. Now you want to put the
ongoing call on hold for a short while.
Line
Х Ф
Press the Line key.
The call can be picked up on your extension within one minute, or if
not it will recall on your extension.
Line
Ц Ф
Press again to retake the call that has been put on hold.
Common Hold
Line
Х Ф
Press the Line key.
d
Replace the handset.
The call can be picked up on any extension within one minute, or if
not it will recall on the holding extension.
Line
Ц Ф
Press again to retake the call that has been put on hold.
Or:
Pick-up on another extension: z
Enter the number of the extension that put the call on hold.
6
Press.