Yes! Disconnected cell phones that are charged are still able to dial 9-1-1. If you do not pay for cell phone service, but have an old phone, you can keep it with you in case you need to use it to report an emergency situation on 9-1-1. Please keep this information in mind when giving your old phone to a child to play with, as we receive many calls from children playing on disconnected cell phones, and these calls take time away from answering real emergency calls.