They are confident that all of their customers can now call 911 and their location will appear for 911 operators. If not, the call will be routed through the traditional 911 channels or will be handled by Vonage's operators.

"We are dedicating every resource at our command toward turning up a national E911 system," Jeffrey Citron, Vonage chief executive, said in a statement. "Not only are we spending over $50 million, but we're working with public safety to create a framework to hasten this national deployment."