At the company where I work we do faxes, email to fax, fax to fax, fax to email... etc.
JFax (if I remember right) owns a patent for "fax store and forward". So you can't build ANY kind of application that receive a fax, store it and then forward it (using any electronic method) without having to buy the rights from JFax. Isn't that crazy?

I agree, sometimes the the patents are just plain stupid.