Avaya 9600 manual Media, Channel, Encryption, Proxy, Server, QoS

Glossary of Terms

HTTPS	A secure version of HTTP.
IETF	Internet Engineering Task Force, the organization that produces standards for
	communications on the internet.
LAN	Local Area Network.
LLDP	Link Layer Discovery Protocol. All IP telephones with an Ethernet interface support
	the transmission and reception of LLDP frames on the Ethernet line interface in
	accordance with IEEE standard 802.1AB. SIP Software Release 2.0 and up supports
	LLDP.
MAC	Media Access Control, ID of an endpoint.
Media	Encryption of the audio information exchanged between the IP telephone and the call
Channel	server or far end telephone.
Encryption
NAPT	Network Address Port Translation.
NAT	Network Address Translation.
OPS	Off-PBX Station.
PPM	Personal Profile Manager, part of the SIP Enablement Services (SES) platform. PPM
	is responsible for maintaining and managing end users’ personal information in the
	system.
Proxy	An intermediary entity that acts as both a server and a client for the purpose of making
Server	requests on behalf of other clients. A proxy server primarily plays the role of routing,
	meaning its job is to ensure that a request is sent to another entity "closer" to the
	targeted user. Proxies are also useful for enforcing policy, for example, making sure a
	user is allowed to make a call. A proxy interprets, and if necessary, rewrites specific
	parts of a request message before forwarding it.
PSTN	Public Switched Telephone Network, the network used for traditional telephony.
QoS	Quality of Service, used to refer to several mechanisms intended to improve audio
	quality over packet-based networks.
RSVP	Resource ReSerVation Protocol, used by hosts to request resource reservations
	throughout a network.
RTCP	RTP Control Protocol, monitors quality of the RTP services and can provide real-time
	information to users of an RTP service.
RTP	Real-time Transport Protocol. Provides end-to-end services for real-time data such as
	voice over IP.
SCEP	Simple Certificate Enrollment Protocol, used to obtain a digital certificate.
SDP	Session Description Protocol. A well-defined format for conveying sufficient
	information to discover and participate in a multi session.
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116 9600 Series SIP IP Telephones Administrator Guide SIP Release 2.0