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A VoIP gateway is a gateway device that uses Internet Protocols to transmit and receive voice communications (VoIP). [1]

11 relations: Codec, Foreign exchange service (telecommunications), G.711, G.729, Gateway (telecommunications), Internet Protocol, Plain old telephone service, Public switched telephone network, Session Initiation Protocol, User Datagram Protocol, Voice over IP.


A codec is a device or computer program capable of encoding or decoding a digital data stream or signal.

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Foreign exchange service (telecommunications)

Foreign exchange service (FX) is a telecommunications network service in which a telephone in a given exchange area is connected, via a private line (as opposed to a trunk line), to a telephone exchange or central office in another foreign exchange, rather than the local exchange area where the device is located.

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G.711 is an ITU-T standard for audio companding.

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G.729 is an audio data compression algorithm for voice that compresses digital voice in packets of 10 milliseconds duration.

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Gateway (telecommunications)

In telecommunications, the term gateway has the following meaning.

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Internet Protocol

The Internet Protocol (IP) is the principal communications protocol in the Internet protocol suite for relaying datagrams across network boundaries.

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Plain old telephone service

Plain old telephone service (POTS) is voice-grade telephone service employing analog signal transmission over copper loops.

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Public switched telephone network

The public switched telephone network (PSTN) is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators, providing infrastructure and services for public telecommunication.

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Session Initiation Protocol

The Session Initiation Protocol (SIP) is a communications protocol for signaling and controlling multimedia communication sessions.

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User Datagram Protocol

The User Datagram Protocol (UDP) is one of the core members of the Internet protocol suite.

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Voice over IP

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet.

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Redirects here:

VoIP gateways, Voice Gateways.


[1] https://en.wikipedia.org/wiki/VoIP_gateway

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