AT&T sues Vonage for Patent Infringement
AT&T filed a lawsuit against VoIP provider Vonage on Friday seeking damages for alleged patent infringement. In a filing with the U.S. District Court for the Western District of Wisconsin, AT&T alleged that Vonage wilfully infringed an AT&T patent related to telephone systems that allow people to make VoIP calls using standard telephone devices.
In the legal filing, AT&T said it tried to reach an agreement with Vonage to license the patent, but failed, which forced the lawsuit. Vonage announced on Oct. 8 that it settled its suit with Sprint Nextel for $80 million. As part of that agreement, Vonage agreed to license VoIP patents from Sprint, including more than 100 patents covering technology for connecting calls from a traditional phone network to an IP network.
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