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    B-Channel

    Last Updated May 24, 2021 1:35 pm
    Webopedia Staff
    Short for Bearer-channel, the main data channel in an ISDN connection. Basic Rate ISDN (BRI) service consists of two 64 Kbps B-channels, and one D-channel for transmitting control information. Primary ISDN service consists of 23 B-channels (in the U.S.) or 30 B-channels (in Europe).

    Compare with D-channel.

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