I - Definitions

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  • I

    inbound call

    An inbound call is one that a customer initiates to a call center or contact center.

  • incumbent local exchange carrier (ILEC)

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

  • Indefeasible Right of Use (IRU)

    In telecommunications, the Indefeasible Right of Use (IRU) is a contractual agreement (temporary ownership) of a portion of the capacity of an international cable.

  • instant messaging

    Instant messaging, often shortened to IM or IM'ing, is the exchange of near real-time messages through a standalone application or embedded software.

  • Internet Protocol (IP)

    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 technologies, products and services that use the Internet Protocol's packet-switched connections to support voice calling, voicemail, video calling, video conferencing, faxing and instant messaging.

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