FPINIT() checks to be sure that a CAS compliant fax board is installed
and functioning. It also reads some information from the fax board for
later use by the other FP functions.

You MUST call this function before using the other library functions.
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Syntax

    FPINIT() --> lResult

    Returns .T. if a fax board is found. Returns .F. if no fax board was
    found OR the fax board does not respond as expected.
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Example

    IF .NOT. FPINIT()
        ? "No fax board detected (or not working)!
        QUIT
    ENDIF