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    Ear and Mouth

    Last Updated May 24, 2021 1:41 pm
    Vangie Beal
    Written by Vangie Beal
    Also known as E&M, Ear and Mouth is the interface on a VoIP device that allows it to be connected to analog PBX trunk ports (tie lines).

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    Vangie Beal
    About the author About the author arrow
    Vangie Beal

    Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

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