How do you fax using T.38 from Parallels ? If the router is connected to Voip service, and both the service and your router supports T.38 faxing, and set up correctly, how can this be accomplished through Parallels ? Parallels is set to Bridged mode. I have Winfax installed (even tried the default Fax) in Windows. but it doesn't send. I'm assuming PSTN is not required, as T.38 is Voice over IP. The modem properties of Winfax doesn't show any sort of LAN connection, but this may be just for dialup modems. Any advice here?