I replace the modem with a real modem. That is, not a WinModem. Some will revolt against such a fix. If so I let them dangle on the Symantec support line until they give in.
I have winfax on a desktop PC OS XP pro and SP1. The error No Dial Tone Appears when trying to send a fax.
I also have the same version on a notebook with W98SE and it works just fine.
I have also tried it on Win ME with the same result as XP.
Is this to do with the SP1 in XP and or ME.