The options displayed for the buttons at the bottom of the display change dynamically to reflect actions that you can perform during calls or while the phone is idle.

Note that the soft keys only relate to the call currently displayed. You can use the up arrow up and down down arrow arrow keys to display the details of another call and its related soft keys without interrupting your currently connected call.

Some of these options are only be available if enabled by your system administrator.

Enter an account code to associate with the call.
Answer a page call, turning it into a normal call.
Set an automatic callback on the user that you have called but who has not answered. When they next end a call, the telephone system will call you and when answered, will automatically make a call to the user.
Complete the transfer of a held call. A Cancel option is also shown which will end the transfer attempt.
Put your current call on hold and present dial tone for you to dial the number you want to add to a conference with the held caller.
Take a call off hold.
Access the directory in order to select a number by name rather than dialing it. The type of names available in the directory is adjusted to match those suitable for use by the feature.
End the call.
Silence the ringer for the current alerting call. The call will continue alerting until either answered, it goes to voicemail, or the caller abandons the call.
Answer the call that is held or alerting another user.
If there are outgoing numbers in your call log, display the list of those numbers.
Put your current call on hold and present dial tone for you to dial the number to which you want to transfer the call.
Send an alerting call to your voicemail.