The Transition POTS phone line converter system is intended to connect central-office voice grade signals to distant Plain old telephone equipment (POTS) utilizing standard telephone signaling. Two units are required to implement an end to end system; Unit A connects to a telephone line or PBX and has the ability to detect ringing voltages and to act as a telephone (LINE SIDE FXS). Unit B is the reciprocal unit and has the ability to act as a Central Office and connects to a telephone device (CUSTOMER SIDE FXO).
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