This is what every one was been looking for .It works for chipset RCV336 ACF /SP-U
AND really R6701-12 .[FCCID=FELMR56PVS] This is the driver files for AOPEN FM56-EX, FM56PVS, FM56-RS, FM56-ITU, AND FM336PVS. Works with Windows 95/98 and NT. Drivers found at www.taicom.com.tw/download/download.htm with P/N search. FM336PVS is for P/N 91.AB072.001, not sure about the others.