VoIP Patent Suit Ensnares Verizon, AT&T, Earthlink

Law360, New York (March 16, 2007, 12:00 AM EDT) -- Verizon Communications Inc., AT&T Corp., Vonage Holdings Corp. and other major players in the Voice over Internet Protocol market have been hit with a patent infringement suit over the Internet telephone technology.

The suit, filed Wednesday by patent holding company Web Telephony LLC, also named Earthlink Inc. and SunRocket Corp. as defendants. The suit centers on two patents entitled “Internet controlled telephone system.”

The patents, issued in September 2002 and August 2004 respectively, cover several aspects of VoIP, including using a Web interface to handle incoming...
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