Avaya IP OFFICE J139 User Manual page 6

J129 PHONE BUTTONS AND FEATURES
1. Beacon LED - The beacon LED flashes a red light to the upper-right
corner of the deskphone, which indicates that you have a voice mail, and
incoming call or you are on a call using speakers
2. Phone Display - The phone displays the call information in this area,
such as the extension, caller information, and missed calls.
3. Softkeys - The softkeys selects the action that is displayed in the softkey
section of the phone display. The softkeys are context sensitve