Just when you thought Vonage may be catching a breather from the total barrage of lawsuits it has been hit with of late, along comes none other than AT&T to prove you wrong. Reportedly, the company has filed a lawsuit in the US District Court in Madison, Wisconsin alleging that Vonage unlawfully violated a 1996 patent filing that "broadly describes the idea of routing telephone calls over data networks like the internet." It sounds as though the fledgling VoIP provider is hoping to resolve the dispute before it goes to trial, but it did note that it "couldn't guarantee" such an outcome. We're tempted to ask how Vonage's year could get any worse, but quite frankly, we're not so sure we'd like the answer.

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