San Francisco - The Electronic Frontier Foundation (EFF) has won reexamination of an illegitimate patent on voice-over-Internet protocol (VoIP) that could cripple the adoption of new VoIP technologies. A company named Acceris Communications Technologies, now C2 Communications Technologies, was awarded the bogus patent for hardware, software, and processes for implementing VoIP using analog telephones as endpoints -- covering many telephone calls made over the Internet. EFF and the law firm Fenwick & West LLP filed a reexamination request showing that both a prior patent and published reference materials described the underlying technology long before Acceris made its claim. Today the United States Patent and Trademark Office (USPTO) granted EFF's reexamination request, ruling that there were substantial new questions of patentability.