The NGMN Alliance has agreed on Architecture Principles for their P1-End-to-End Architecture Framework project. The final deliverable, version 2.7, was approved on November 11th, 2016. The document is publicly available and was edited by Adrian Neal from Vodafone. The NGMN Alliance takes confidentiality seriously and requires written authorization for the use, disclosure, or reproduction of confidential documents. Public documents are © 2016 Next Generation Mobile Networks Ltd. and may not be reproduced without permission. The information in the document represents the current view of the NGMN Alliance as of the date of publication and is provided "as is" with no warranties.