Avaya 4600 Series Administrator's Manual page 16

Introduction
TFTP Trivial File Transfer Protocol, used to provide downloading of upgrade scripts and
application files to the IP telephones.
Time-to- A new feature with Communication Manager 4.0, IP Endpoint Time-to-Service (TTS)
Service decouples gatekeeper H.323 registration from TCP socket establishment for call
(TTS) signaling, thus reducing the time for the endpoint to come into service.
TLS Transport Layer Security, an enhancement of Secure Sockets Layer (SSL). TLS is
compatible with SSL 3.0 and allows for privacy and data integrity between two
communicating applications.
TLV Type-Length-Value elements transmitted and received as part of Link Layer
Discovery Protocol (LLDP).
UDP User Datagram Protocol, a connectionless transport-layer protocol.
Unnamed Registration with Avaya Communication Manager by an IP telephone with no
Registration extension. Unnamed registration is typically used to limit incoming calls.
VLAN Virtual LAN.
VoIP Voice over IP, a class of technology for sending audio data and signaling over LANs.
WML Wireless Markup Language, used by any 4600 Series IP Telephones that can
communicate with WML servers.
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