3CX
A software IP telephony system used as PBX.
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Audio Codec
An algorithm that encodes and compresses the voice during a call.
View →DECT
A radio technology used by many professional wireless phones.
View →DID
A public number that can be directed directly to an extension or service.
View →Phone Extension
An internal number assigned to a user, phone or service in a PBX.
View →RTP
The protocol usually carrying the audio or video stream of a call VoIP.
View →SIP
The common signaling protocol used to establish and manage calls VoIP.
View →SIP ALG
A function of some routers that modifies traffic SIP to try to facilitate the NAT.
View →SIP Trunk
A liaison SIP between a telephone system and an operator or another PBX.
View →VoIP
A technology that transports voice over an IP network.
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