CounterPath X-Lite 3.0 User Guide - Manual (Page 66)

CounterPath X-Lite 3.0
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RFC Request for Comment. A document that describes a particular internet technology.
RFCs may be a proposals, drafts or full internet standards (IETF standards).
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 The information in a VoIP call that establishes and controls the connection as well as
managing the network. The non-signaling portion of the call is the Media.
SIMPLE protocol SIP for Instant Messaging and Presence Leveraging Extensions. The instant
messaging (IM) protocol to which X-Lite adheres. SIMPLE encapsulates the rules for
exchanging instant messages. See SIP.
SIP Session Initiation Protocol. The signaling protocol that X-Lite follows for phone calls.
SIP account An account that provides users with the ability to make VoIP phone calls. The account
encapsulates the rules users must follow and the telephony functions users can access.
SIP address The address used to connect to a SIP endpoint (i.e. the “phone number” used in a VoIP
phone call). An example would be: sip:[email protected].
TCP Transmission Control Protocol. A transport protocol for delivering data over an IP
network. Other transport protocols include TLS and UDP..
UDP User Datagram Protocol. A transport protocol for delivering data over an IP network.
Other transport protocols include TCP and TLS.
URI Uniform Resource Identifier. A name or address that identifies a location on a
network. A SIP address is a type of URI.
URL Uniform Resource Locator. A URI that both identifies a name or address and indicates
the network mechanism used to access the resource.
USB device Universal Serial Bus device. A device that follows a specific communications
standard. A headset may be a “USB type” of headset.
VAD Voice Activity Detection. A technology that detects whether audio is a human voice
or background noise. X-Lite includes a feature (Preserve bandwidth during silence
periods under Options
→ Advanced → Network) that controls whether or not audio
gets transmitted when VAD determines that no one is speaking.
vCard An electronic business card that people can attach to an email. vCards often appear as
a “signature” block that identifies the person, their title, and their business.
VoIP Voice over Internet Protocol. A variation of IP used for sending voice data over the
internet (i.e. for making phone calls over the internet).
VoIP service provider A business that provides a VoIP service, allowing users to connect to the internet for
making VoIP phone calls using X-Lite. VoIP service providers set up a separate SIP
account for each user.
WAV Pronounced “wave.” A file format standard for storing audio on PCs.