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IPR Claim Received IPR claim of Nortel December 14th Nortel Networks U.S. Patent No. 6,772,210, entitled "Method and apparatus for exchanging communications between telephone number based devices in an internet protocol environment", may contain claims that are believed may be necessary for practicing the resulting IETF Standard based on this Internet Draft. Claim is here https://datatracker.ietf.org/public/ipr_detail_show.cgi?&ipr_id=506 We are not lawyers, but there MAY be prior art! |