Avaya 7 manual A private call-handling system providing voice-only or voice and data

Switch
Switch	A private call-handling system providing voice-only or voice and data
	communications services, including access to public and private networks, for a
	group of terminals within a premises. See also Communication server.
System Tray	The area of the Windows task bar where applications can display an icon for
	simplified access to special features. Avaya IP Agent displays an icon in the
	System Tray.
TAPI Assisted	Avaya IP Agent supports telephony-enabled applications, such as Microsoft
Dialing	Scheduler. This support provides the ability for telephony-enabled Windows
	applications to originate a call and have the call reflected in the Avaya IP Agent
	application.
Telecommuter	An Avaya IP Agent configuration where voice communications are performed
	through a telephone and data communications are sent through the network to
	a personal computer. In this configuration, calls to an extension can be routed
	to any telephone number.
Telephone type	Avaya produces many different models of telephone sets with differing
	capabilities. Each model supported by Avaya IP Agent is considered a
	telephone type. Telephone types are identified by the unique number
	associated with each model.
Toll quality	A term used to compare audio quality and reliability of voice communications to
	that of telephone calls placed over the PSTN.
Toolbar	A row of buttons used to activate various functions of Avaya IP Agent through
	the main window.
Tooltips	Brief descriptions that are displayed when the mouse pointer is over a toolbar
	button or control in the application interface.
Transfer	See Basic Transfer, Enhanced Transfer, or Unsupervised Transfer.
Unsupervised	A call transfer option that lets an agent send the present call to another phone
Transfer	number or extension. The agent does not talk to the party receiving the
	transferred call. See also Basic Transfer and Enhanced Transfer.
User-to-User	A unique identifier that is added to an incoming call through an external
Information (UUI)	application, such as Avaya ASAI.
VDN of Origin	A short announcement that is assigned to a Vector Directory Number (VDN)
Announcement	through Avaya communication server administration. The VOA identifies the
(VOA)	origin or purpose of a call for the call center agent who answers the call.
Vector	On a communication server, a list of steps that processes calls according to a
	configuration set by the administrator. The steps in a vector can send calls to
	splits or skills, play announcements and music, disconnect calls, give calls a
	busy signal, prompt callers for information, or route calls to other destinations.
Virtual Private	A group of computers or network devices that can communicate privately and
Network (VPN)	securely over a public IP network through the use of encryption and special
	protocols.
VOA	See VDN of Origin Announcement (VOA).

162 Avaya IP Agent Installation and User Guide for Citrix June 2007