At this point, does Vonage just exist to get sued?AT&T is taking Vonage to court over patent infringements, just like everybody else. AT&T seeks an injunction, alleging Vonage infringed on a patent related to VOIP calls on standard telephone devices. Who knew there was anything left to gain from suing Vonage? Verizon and Sprint already had their way with the company when judges ruled in their favor in two prior suits. (Photo by Torbert Timson)