C - Definitions

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  • C

    call admission control (CAC)

    Call admission control (CAC) is the practice or process of regulating traffic volume in voice communications, particularly in wireless mobile networks and in VoIP (voice over Internet Protocol, also known as Internet telephony)... (Continued)

  • call control

    Call control is a process that is used in telecommunications networks to monitor and maintain connections once they have been established.

  • call deflection

    Call deflection is a feature of voice over IP (VoIP) that automatically redirects a call from the called endpoint to another endpoint (usually a voice mailbox) when the called endpoint is busy.

  • call detail record (CDR)

    A call detail record (CDR) in voice over IP (VoIP) is a file containing information about recent system usage such as the identities of sources (points of origin), the identities of destinations (endpoints), the duration of each call, the amount billed for each call, the total usage time in the billing period, the total free time remaining in the billing period, and the running total charged during the billing period.

  • call signaling

    Call signaling is a process that is used to set up a connection in a telephone network.

  • centrex (central office exchange service)

    Centrex (central office exchange service) is a service from local telephone companies in the United States in which up-to-date phone facilities at the phone company's central (local) office are offered to business users so that they don't need to purchase their own facilities.

  • Cisco Webex

    Cisco Webex is a video conferencing and collaboration product suite.

  • CLEC (competitive local exchange carrier)

    In the United States, a CLEC (competitive local exchange carrier) is a telephone company that competes with the already established local telephone business by providing its own network and switching.

  • cloud PBX (private branch exchange)

    A cloud PBX (private branch exchange) is a business phone system for connecting employees to a telephone network using a managed service running in the cloud.

  • cloud telephony (cloud calling)

    Cloud telephony (cloud calling) is a type of unified communications as a service (UCaaS) that offers voice communication services through a third-party host.

  • codec

    A codec is a hardware- or software-based process that compresses and decompresses large amounts of data.

  • communications platform as a service (CPaaS)

    Communications platform as a service (CPaaS) is a cloud-based delivery model that allows organizations to add real-time communication capabilities, such as voice, video and messaging, to business applications by deploying application program interfaces (APIs).

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