The cell phone foils this information technology. Granted if you're a pimp or pusher you don't want the man to be able to put the finger on you when you use the phone. But in a medical or security emergency when you want rapid response the security of the cell technology is a negative feature.
Program your local police emergency phone number into your cell phone. By calling this direct land line from your cell phone you will be connected to the local authorities, best able to send help. If you simply dial 911 from the cell phone some operator in a big communications center run by some state agency will pick up the call, figure out where you are calling from by talking with you, then transfer you to the appropriate local police emergency phone (that you neglected to program into your own cell phone). Given that these 911 cell calls are often not answered for several minutes it may well be a very expensive ishewdove.
IN AN EMERGENCY CALL 911
From a cellular phone in Placer County dial (530) 823-4411