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Tags >> FXS, FXO, Trunk, PBX, Analog Phone

What is FXO & FXS?

Posted by: support on Nov 16, 2009

what are FXO & FXS? Why do I need it?

FXO and FXS are interfaces (ports or plugs) commonly used with analog phones and phones lines.

FXO stands for Foreign eXchange Office
FXS stands for Foreign eXchange Subscriber

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