I had a company tell me recently that they pay licensing fees on four patents related to faxing over IP so they can sell their Asterisk-based fax server software. The guy refused to go into details on what patents they were and basically the guy was a fucking dick about the whole thing. I did some Google searches on it and found a company called J2Global that has some related patents, but they are very vague about it. Has anyone ever heard of this before? Eric??