Line Keys: Holds programmable buttons such as Call Park, Toggles, Busy Lamp Fields, Speed Dials, intercom, etc.
Soft Keys: Include features such as Call History, Do Not Disturb, Directory, etc.
Volume: Adjusts the ring volume while the phone is idol or the handset volume during a call.
Loud Speaker: Places a call on loudspeaker (or “speakerphone”)
Voicemail: Allow you to access your personal voicemail box.
Directory (Dir): Stores personal contacts and lists the extensions of other individuals in your organization.
Hold (Private): Places a call on hold. (Private hold, your extension only)
Headset: Turns on or off the connection to a wired or wireless headset.
Mute: Mutes your audio while on a call otherwise, Do Not Disturb.