Model: FB WS5614ES2A
Operating System: Windows 95 (Note: might work with other versions of this os.)
Rockwell RC56D2 Serial PnP V.90, K56Flex, voice, speakerphone.
This chip was probably used by other manyfacturers.
I searched here for an RC56D2 driver, and did not find one that worked. In fact, they caused Windows Protection Error shutdowns. This one is from the Hawking Download site.
I have no manual, so don t know how to use the modem as a speakerphone.