It is always interesting to understand the motives of the writer. IP911 website:
The United States Patent and Trademark Office (USPTO) has granted a patent to IP911 Resource for its emergency call technology via VoIP. The VoIP 911 solution is also referred to as S911 (Superior 911). The patent decision comes four weeks after the FCC mandated that all VoIP providers had to provide 911 services within 120 days.
According to the company, IP911 Resource's patented technology involves the integration of GPS, software, various databases and IP telephones. After an emergency signal is activated over a VoIP connection, the software uses a GPS device to pinpoint the exact location of the caller in terms of longitude, latitude and altitude. Location software and database comparisons are then used to find the address of the emergency and the nearest public safety location and phone number to route the VoIP emergency.