Open IMS

Abstract

in the world was 314 million in second quarter 2007. We believe that there is a real need for those millions of broadband subscribers to call each other "over IP," even when between different operators, IMS or non-IMS, and using all the benefits of high speed Internet (i.e., better voice quality, video, instant messaging). We also believe that there is a strong need for a standard authentication and encryption for those calls. This will not only provide call participants on both ends with reliable information about who the other party really is-similar to what the PSTN provides more or less today-it will also provide