If your phone line has the distinctive ring feature, so that 2 phone numbers can ring, with a different sound, on the same phone line, neither Windows 2000 Fax nor Windows XP Fax can determine which phone number rang.

To workaround this problem, you will need to install a 3rd party device that provides support for distinctive ring.

NOTE: If you have all old computer running Microsoft Windows 98 Second Edition or Microsoft Windows Millennium Edition (Me), they can provide support for distinctive ring.