en source community.6 Open source speeds up innovation, lower costs, and helps to converge quickly on a universal solution, embraced by all. Initially conceived to be something people can modify and share, because the design is publicly accessible, "open source" has come to represent open exchange, collaborative participation, rapid prototyping, transparency, meritocracy, and community-oriented development.7 The phenomenal success of the Internet can be attributed to open source technologies (Linux, Apache Web server application, etc.) Consequently, anyone who is using the Internet today benefits from open source software. One of the tenets of the open source community is that you do not just take code. You contribute to it, as well. AT&T strongly believes that the global telecom industry needs to actively cultivate and nur- ture open source. To spur this, we have decided to contribute the ONAP platform to open source. Developed by AT&T and its collaboration partners, the decision to release ONAP into open source was driven by the desire to have a global standard on which to deliver the next generation of applica- tions and services. At the time of this writing, there are at least four active open source communities pertaining to the Network Functions Virtualization (NFV)/SDN effort: OpenStack ON.Lab OpenDaylight OPNFV AT&T has been active in all four, and will continue to do SO. Many other telecom companies, as well as equipment vendors, have also been equally active. Any significant effort to re-architect the telecom network to be software-centric cannot ignore the needs of wireless (mobile) systems. The fourth generation wireless system, Long-Term Evolution (LTE), which was launched in late 2009, made significant advances in the air interface, as well as the architecture of the core network handling mobile traffic. The driver behind this was the desire to Building the Network of the Future build a network that was optimized for smartphones and the multitude of applications that runs on them. As of this writing