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+INTRODUCTION
+
+Google Inc. acquired Global IP Solutions, Inc. (GIPS) in 2011, and GIPS is now a
+subsidiary of Google. Google Inc. and its subsidiaries and affiliates ("Google")
+would like to update and clarify their position with respect to any patents and
+patent applications it may own that cover the iLBC (internet low bit-rate) codec
+technology that is the subject of IETF RFC 3951 and RFC 3952. This notice is
+provided in accordance with RFC 3979 and RFC 4879 covering IPR in the IETF.
+
+
+DECLARATION
+
+"iLBC Specification" means IETF RFC 3951 and RFC 3952.
+
+Google hereby grants to you a perpetual, worldwide, non-exclusive, no-charge,
+irrevocable (except as stated in this section) patent license to make, have made,
+use, offer to sell, sell, import, transfer, and otherwise run, modify and
+propagate implementations of the iLBC Specification, where such license applies
+only to those patent claims, both currently owned by Google and acquired in the
+future, licensable by Google that must necessarily be infringed because of what
+is specifically required by the normative portions of the iLBC Specification.
+This license is offered on the condition that you grant a reciprocal license
+under the same terms as this license to all parties for implementations of the
+iLBC Specification under those patent claims, both currently owned by you and
+acquired in the future, licensable by you that must necessarily be infringed
+because of what is specifically required by the normative portions of the iLBC
+Specification. If you or your agent or exclusive licensee institute or order or
+agree to the institution of patent litigation against any entity (including a
+cross-claim or counterclaim in a lawsuit) alleging that any implementation of the
+iLBC Specification constitutes direct or contributory patent infringement, or
+inducement of patent infringement, then any patent rights granted to you under
+this license shall terminate as of the date such litigation is filed.
+
+In addition to the license above relating to what is required by the specification,
+the following license relating to the reference implementation is offered.
+
+"The iLBC reference implementation" means the c-code reference implementation in
+Appendix A of IETF RFC 3951.
+
+Google hereby grants to you a perpetual, worldwide, non-exclusive, no-charge,
+irrevocable (except as stated in this section) patent license to make, have made,
+use, offer to sell, sell, import, transfer, and otherwise run, modify and propagate
+the iLBC reference implementation, where such license applies only to those patent
+claims, both currently owned by Google and acquired in the future, licensable by
+Google that are necessarily infringed by the iLBC reference implementation. This
+grant does not include claims that would be infringed only as a consequence of
+further modification of the iLBC reference implementation. If you or your agent or
+exclusive licensee institute or order or agree to the institution of patent
+litigation against any entity (including a cross-claim or counterclaim in a
+lawsuit) alleging that the iLBC reference implementation constitutes direct or
+contributory patent infringement, or inducement of patent infringement, then any
+patent rights granted to you under this License shall terminate as of the date such
+litigation is filed.
+
+
+Submitted Date
+
+November 8, 2011
+
+
+Patent Holder/Applicant
+
+Google Inc.
+
+
+Patent Holder's Contact for License Application
+
+Scott K Peterson
+
+Telephone: +1 617 299 9282
+Email: standards-licensing@google.com
+
+
+Contact Information
+
+Jan Linden
+Telephone: +1 415 690 7610
+Email: jtlinden@google.com
+
+
+IETF Document or Other Contribution to Which this IPR Disclosure Relates
+
+RFC 3951: "Internet Low Bit Rate Codec"
+RFC 3952: "RTP Payload Format for iLBC Speech"
+
+
+References
+
+https://datatracker.ietf.org/ipr/1649/
+https://datatracker.ietf.org/ipr/319/