The 4612 IP Phone
13.Volume Control - Adjust the speaker, handset or ringer volume, depending on which item is in use.
14.Hold - Red button used to place a call on hold.
Issue 1 July 2001
The 4612 IP Phone
13.Volume Control - Adjust the speaker, handset or ringer volume, depending on which item is in use.
14.Hold - Red button used to place a call on hold.
Issue 1 July 2001