3 ms·

Triangulation using cell phone towers is already in use. See http://en.m.wikipedia.org/wiki/Mobile_phone_tracking#section_4 http://en.m.wikipedia.org/wiki/Mobi

• modeless 15y ago
  [citation needed]
  • 7952 15y ago
    http://developer.vodafone.com/partners/location/ http://developer.vodafone.com/partners/location/
    • modeless 15y ago
      Sorely lacking in technical details. They imply triangulation based on signal strength which is not what I'm talking about.