VoIP service is not like traditional analog phone lines, which provided their own power. In the event of a power or broadband failure, VoIP service could become unavailable. It’s also more portable, so if you decide to move an extension that can complicate things as well. For details, you might want to read our full E911 Service Disclaimer. That said, our VoIP service does support E911 and it will be enabled on DIDs you select. We provide a handy online portal for you to manage your E911 addresses, too.