EFF challenges VoIP patent

The Electronic Frontier Foundation says it has discovered another bogus patent, and it's taking the newly found evidence to the Patent and Trademark Office to have the patent invalidated. The civil liberties organization filed a re-examination request to the PTO, stating it had discovered a prior patent as well as published reference material that should invalidate a patent that had been granted to a company called Acceris. The patent that Acceris was granted describes how voice over IP technology can be used to make calls to and from traditional analog telephones. The EFF has been challenging several patents as part of its Patent Busting Project.