This action is supported on phones which do not have a permanent Drop button.

• For a currently connected call, pressing Drop disconnects the call. When drop is used to end a call, silence is returned to the user rather than dial tone. This is intended operation, reflecting that Drop is mainly intended for use by call center headset users.

• If the user has no currently connected call, pressing Drop will redirect a ringing call using the user's Forward on No Answer setting if set or otherwise to voicemail if available.

• For a conference call, on phones with a suitable display, Drop can be used to display the conference parties and allow selection of which party to drop from the conference.