The Internet has become a multi-service converged network that transports telephony, data, and video for millions of users. Some of those applications cause problems for other applications and this has prompted broadband providers like Comcast to proactively manage their network. Comcast will switch to a more accurate "Protocol Agnostic" network management system by year end. This FCC filing examines how P2P applications harm telephony applications even during low levels of utilization, how traffic shaping technologies can improve service, and how Comcast’s new Protocol Agnostic network management system will work to protect VoIP services.