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Vonage Sued by AT&T for Patent Infringement


Having just agreed to pay $80 million to Sprint Nextel to settle a patent litigation, Vonage is being sued once again for patent infringement - this time by AT&T.

AT&T filed its case in a Wisconsin federal court last week and according to media reports, the single patent in the case involved the use of a standard phone linked to the Internet.

AT&T and Vonage said they have been in discussions for months in attempts to settle their patent differences. Discussions failed and AT&T went to court.

Vonage Hammered by Lawsuits


AT&T is the latest competitor chasing Vonage for patent infringement. Vonage has also been sued by Verizon Communications Inc. for patent infringement.

While Vonage is seeking judicial review of this decision currently, Verizon was awarded a $58 million judgment plus damages against Vonage.

Vonage also said it has settled another patent case with Klausner Technologies, which had been seeking $200 million.

All together, the patent litigation against Vonage covers a wide range of properties from voice mail to interconnect links and includes compression and packet technologies.

Future of Vonage and VOiP


Many wonder whether the established telecommunications firms will file suit against patent infringement suits against other VoIP companies as well. In the past, Vonage hasn't fared well with juries, losing both the Verizon and Sprint cases in jury trials.

Vonage is one of the largest independent VOIP providers in the U.S. with nearly 2.5 million customers.

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