Do not throw away your old cell phone. You can use a used cell phone to
call 911 without paying anything at all. According to the FCC regulations all
cell phones, regardless if they have service or not must be able to dial 911.
Keep your emergency cell phone in your trunk with car adapter all the time.
You don't need to recharge it or keep it charged. Just plug the phone into your
car's cigarette lighter, turn it on, dial 911, and it will work.