![](/images/new-backgrounds/1257445/25744531x1.webp)
About the IP Audio Conference Phone 2033
Telephone controls
Use the Volume control buttons to adjust the volume of the ringer and speaker.
Use the Mute key on the main unit or any extension speaker to mute the speaker. The Status indicator LED blinks red when mute is activated.
Note: Pressing the Mute key on the extension microphone toggles the mute state of the entire telephone, not just the microphone.
Use the Line (DN) key to access the single line and activate
Use the Goodbye key to terminate an active call.
Press the Hold key to put an active call
on hold. Press the Line (DN) key to return to the caller on hold.
Press the Message (Inbox) key to access your voice mailbox.
16