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  2. FreePBX - Wikipedia

    en.wikipedia.org/wiki/FreePBX

    FreePBX is a web-based open-source graphical user interface (GUI) that manages Asterisk, a voice over IP and telephony server. [1] FreePBX is licensed under the GNU General Public License version 3. [2] It is a component of the FreePBX Distro, which is an independently maintained Linux system derived from the source code of the CentOS ...

  3. Comparison of VoIP software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_VoIP_software

    This is a comparison of voice over IP (VoIP) software used to conduct telephone-like voice conversations across Internet Protocol (IP) based networks. For residential markets, voice over IP phone service is often cheaper than traditional public switched telephone network (PSTN) service and can remove geographic restrictions to telephone numbers, e.g., have a PSTN phone number in a New York ...

  4. Voice over IP - Wikipedia

    en.wikipedia.org/wiki/Voice_over_IP

    Voice over Internet Protocol ( VoIP [a] ), also called IP telephony, is a method and group of technologies for voice calls for the delivery of voice communication sessions over Internet Protocol (IP) networks, [2] such as the Internet. The broader terms Internet telephony, broadband telephony, and broadband phone service specifically refer to ...

  5. Videotelephony - Wikipedia

    en.wikipedia.org/wiki/Videotelephony

    Videotelephony was popularized in the 2000s via free Internet services such as Skype and iChat, web plugins supporting H.26x video standards, and online telecommunication programs that promoted low cost, albeit lower quality, videoconferencing to virtually every location with an Internet connection.

  6. List of mobile virtual network operators in the United States

    en.wikipedia.org/wiki/List_of_mobile_virtual...

    Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the three major cellular carriers in the country, AT&T Mobility, T-Mobile US, and Verizon. [1] [2] In 2016, MVNOs across the nation such as Metro PCS , Boost Mobile , Cricket Wireless , and Tracfone brands served about 36 million ...

  7. Google Assistant - Wikipedia

    en.wikipedia.org/wiki/Google_Assistant

    The Google Assistant is a virtual assistant software application developed by Google that is primarily available on mobile and home automation devices. Based on artificial intelligence, The Google Assistant can engage in two-way conversations, unlike the company's previous virtual assistant, Google Now.

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