Use Of Data, Voice Channels To Transmit Calls Is Obvious, Petitioner Says

(June 21, 2022, 8:50 AM EDT) -- ALEXANDRIA, Va. — In a June 18 petition for inter partes review, a voice over Internet protocol (VoIP) company urges the Patent Trial and Appeal Board to cancel eight claims of a patented method for providing telephone service in view of two prior art references....

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