Tonigy is now freeware.
http://hobbes.nmsu.edu/download/pub/os2/apps/mmedia/cd/tonigy17.wpiHow to register Tonigy?
Registration is free!
Use the free key:
hLfSfk+D3DErvn2r98eaHEyyFu1UOkH50RuYyPeEmJCJ
dLyyepvMVY3Z6/4ks9tP9V+YJq0hoX8U+X/yE518NA==
The key is official. It can be used for non-commercial purposes with no limitation.
PMFax (AKA PrimaFax, and FAXworks), but I am not sure where they can be downloaded From the announcement:
PrimaFax Pro for Windows (download)
Key: 10-00054-273-937-727-579-251
PrimaFax Pro for Linux (download)
Key: 10-00042-185-182-616-225-873
PMFax Pro for OS/2 (download)
Key: 10-00040-974-912-151-306-952