VoIP 911 Emergency Service: Problems and Fixes
 

"Slate explores the technical hurdles VoIP faces in providing 911 emergency services and points to some technical, legislative and commercial workarounds that just might work. Some are the author's own ideas, some are already in the works. Until this little doozie gets solved, VoIP will have to suffer plenty of FUD of the credible variety and may never spark a real revolution. Of course you can always keep analog POTS (plain old telephone service) around like floppies--just for emergencies--but it'll cost you and tie you down in a number of ways."

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