Using two / dual fax modems with WinFax
WinFax PRO will support a maximin of 2 modems on a single PC. If you need to have dual modems, I’d recommend ensuring both modems are different, otherwise, you may run into difficulties. Two external controller based modems are best, or one external controller-based and one internal controller-less. You can try two controller-less modems, but make sure they are different models/manufacturers. Never use two softmodem based modems on a single machine, you’re just asking for trouble.