What happens when you voip is mobile or is not tied to one provider? It causes headaches for a number of reasons. In the United States it is 911, and the UK 999 service that presents more problems. In both areas many people discontinued their home phone service in favor of cell phones and voip. In our home town a lightning strike knocked out the cell phone tower, but many phones switched over to WiFi. (We are a free WiFi hotspot provider for our town.)

The United States continues to regulate services as if nothing has changed. Thinking like the old days when almost everyone had a home phone, recent regulatory changes now demand enhanced emergency services, or E911. It is a huge problem for mobile voip providers.