Judge Won't Let VoIP-Pal Toss AT&T's Patent Challenge

By Adam Lidgett ( August 26, 2021, 4:47 PM EDT) -- A California federal judge has refused to toss AT&T's lawsuit seeking to invalidate a VoIP-Pal patent on Internet protocol communications routing, despite VoIP-Pal promising not to sue AT&T for infringement of the patent-at-issue....

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