I - Definitions

  • I

    IAX (Inter-Asterisk Exchange Protocol)

    IAX (Inter-Asterisk Exchange Protocol, pronounced "eeks") is a communications protocol for setting up interactive user sessions... (Continued)

  • ILEC (incumbent local exchange carrier)

    An ILEC (incumbent local exchange carrier) is a telephone company in the U.S. that was providing local service when the Telecommunications Act of 1996 was enacted.

  • Indefeasible Right of Use (IRU)

    In telecommunications, Indefeasible Right of Use (IRU) is the effective long-term lease (temporary ownership) of a portion of the capacity of an international cable.

  • Information Kit: Voice over IP

    What is voice over IP (VoIP)? Expert advice: VoIP certification, Implementing VoIP in a small business, Using VoIP at home

  • instant messaging (IM or IM-ing or AIM)

    Instant messaging (sometimes called IM or IMing) is the ability to easily see whether a chosen friend or co-worker is connected to the Internet and, if they are, to exchange messages with them.

  • Internet Protocol

    The Internet Protocol (IP) is the method or protocol by which data is sent from one computer to another on the Internet.

  • IP PBX (private branch exchange)

    An IP PBX is a private branch exchange (telephone switching system within an enterprise) that switches calls between VoIP (voice over Internet Protocol or IP) users on local lines while allowing all users to share a certain number of external phone lines.

  • IP telephony (Internet Protocol telephony)

    IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN).

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