How many fax devices are supported in Windows 2000, XP, 2003 and 2008 by the Windows Fax Service?
A1. It is possible to register as many devices as you like, but only two devices can be configured to send and/or receive faxes simultaneously in Windows 2000, four in Windows 2000 SBS and only a single device in Windows XP. Windows 2003 and 2008 Enterprise Server do not limit the number of fax devices that can be configured to send and/or receive faxes simultaneously. Please note, Fax Service transmits faxes with the same destination address sequentially.