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  2. Voice over IP - Wikipedia

    en.wikipedia.org/wiki/Voice_over_IP

    1991: Speak Freely, a voice-over-IP application, was released to the public domain. [92] [93] 1992: The Frame Relay Forum conducts development of standards for voice over Frame Relay. 1992: InSoft Inc. announces and launches its desktop conferencing product Communique, which includes VoIP and video.

  3. VoIP phone - Wikipedia

    en.wikipedia.org/wiki/VoIP_phone

    Flip VoIP phone. A VoIP phone or IP phone uses voice over IP technologies for placing and transmitting telephone calls over an IP network, such as the Internet. [1] This is in contrast to a standard phone which uses the traditional public switched telephone network (PSTN).

  4. Media Gateway Control Protocol - Wikipedia

    en.wikipedia.org/wiki/Media_Gateway_Control_Protocol

    The Media Gateway Control Protocol (MGCP) is a telecommunication protocol for signaling and call control in hybrid voice over IP (VoIP) and traditional telecommunication systems. It implements the media gateway control protocol architecture for controlling media gateways connected to the public switched telephone network (PSTN). [1]

  5. Comparison of VoIP software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_VoIP_software

    This is a comparison of voice over IP (VoIP) software that examines applications and systems used for conducting voice and multimedia communications across Internet Protocol (IP) networks. VoIP technology has transformed telecommunications by offering alternatives to traditional telephony systems while providing enhanced features and cost savings.

  6. H.323 - Wikipedia

    en.wikipedia.org/wiki/H.323

    The first version of H.323 was published by the ITU in November 1996 [4] with an emphasis of enabling videoconferencing capabilities over a local area network (LAN), but was quickly adopted by the industry as a means of transmitting voice communication over a variety of IP networks, including WANs and the Internet (see VoIP).

  7. Cisco - Wikipedia

    en.wikipedia.org/wiki/Cisco

    The vehicles are self-contained and provide wired and wireless services including voice and radio interoperability, voice over IP, network-based video surveillance and secured high-definition video-conferencing for leaders and first responders in crisis areas with up to 3-72 Mbit/s of bandwidth (up and down) via a 1.8-meter satellite antenna.

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