![](/images/new-backgrounds/1257436/257436199x1.webp)
Terms you should know
Directory key
Enables access to the Directory.
Directory Number (DN)
A number consisting of one to seven digits for a telephone. Also known as an extension number.
Feature display
An area that shows status information about the feature in use. It also displays the name and status of the active session.
Fixed key
The
Handsfree
A method of conversing with the party on the other end of the line without lifting your handset.
Goodbye key
A fixed key used to end an active call.
Handsfree
A method of conversing with the party on the other end of the line without lifting your handset.
Headset key
A fixed key used to answer a call using the headset.
Hold key
A fixed key used to place an active call on hold.
100