The largest telephone companies in the U.S. recently announced they are upgrading the technology that delivers phone service. But they also want to leave behind many of the rules that protect consumers. The U.S. telephone system is a universal communications system that keeps families connected, acts as a lifeline in times of crisis, and is an economic engine for small businesses. Over the coming months, the Federal Communications Commission and other government agencies will be considering how to roll out this transition. The "What's the Hang Up?" toolkit was developed by Public Knowledge and Center for Media Justice to educate the public about how the phone transition affects them and how to get involved in ensuring our communication rights are protected.