Nortel Networks Statement about IPR claimed in RFC 3033 Date: 21 September 2007 From: Michelle Lee Title: Nortel Networks Statement about IPR claimed in RFC 3033 Dear Sir, Nortel Networks Limited has an issued patent US no. 7,254,832, entitled "firewall control for secure private networks with public voip access", that may relate to at least a portion of RFC 3033: Title: Middlebox communication architecture and framework Tag: RFC 3033 http://www.ietf.org/rfc/rfc3303.txt?number=3303 As understood, this RFC 3033 specification is an Informational RFC and not an IETF standards-track document. My contact information is set out below. Kind Regards, Michelle Lee Counsel, IP Law Nortel Networks Limited 5-195 The West Mall Toronto, Ontario Canada M9C 5K1 Tel: 905-863-1148 Fax: 905-863-1986 Email: mleelaw@nortel.com