NetComm V110 manual Appendix a Glossary, Ata

Appendix A: Glossary

This glossary defines acronyms and keywords used in this document.

ATA	Analog Telephone Adaptor
Codec	The format by which audio or video streams are compressed for transmission over networks.
CPC	CPC (Calling Party Control) is a signal sent from most modern electronic COs to indicate that the Calling Party
	has hung up.
DTMF	Dual-tone multifrequency. DTMF is the system that is used in interactive voice-response menu systems such as
	the menu system for accessing voicemail messages. The DTMF system allows the user to interact with the menu
	by pressing keys on the key pad.
FoIP	Fax over Internet Protocol
FXO	Foreign Exchange Office
FXS	Foreign Exchange Subscriber
IP	Internet Protocol. A data-oriented protocol used for communicating data across a network. IP is the most
	common protocol used on the internet.
IP address	A unique number that devices use in order to identify and communicate with each other on a computer network
	using the IP standard.
MWI	Message Waiting Indicator. An indicator that there is a voicemail message for the owner of an account.
PSTN	Public Switch Telephone Network. The traditional land-line phone network.
RTP	Real-time Transport Protocol. A protocol for delivering the media portion of a data transmission over an IP
	network. SRTP is another media protocol.
Signaling	In a VoIP phone call, the information in a call that deals with establishing and controlling the connection, and
	managing the network. The non-signaling portion of the call is the Media.
SIP	Session Initiation Protocol. The signaling protocol followed by VoIP Gateway for handling phone calls.
SIP account	An account that provides the user the ability to make VoIP phone calls. The account encapsulates the rules and
	functions the user can access.
SIP address	The address used to connect to a SIP endpoint. In other words, the “phone number” used in a VoIP phone call.
	For example, sip:test@domainA.com.
STUN	Simple Transversal of UDP through NAT
TCP	Transmission Control Protocol. A transport protocol for delivering data over an IP network. Other transport
	protocols are TLS and UDP.
TLS	Transport Layer Security. A transport protocol for delivering data over an IP network. TLS is a secure transport
	protocol, which means that all the data being transmitted (signaling and media) is encrypted. Other transport
	protocols are TCP and UDP.
UA	User Agent
UDP	User Datagram Protocol. A transport protocol for delivering data over an IP network. Other transport protocols are
	TCP and TLS.
URI	URI Uniform Resource Identifier. A name or address that identifies a location on the world wide web. A SIP
	address is a type of URI.
URL	Uniform Resource Locator. A URI that both identifies a name or address and indicates how to locate it.
VoIP	Voice over Internet Protocol. A variation of IP used for sending voice data over the internet, in other words, used
	for making phone calls over the internet.
VoIP Service Provider	A business that provides a VoIP service, allowing a user to connect to the internet in order to make VoIP phone
	calls using VoIP Gateway. The VoIP service provider sets up a SIP account for the user.

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