We recently deactivated our home landline to be cell phone only. We were told 911 service was still active with the landline. If we leave the phone physically connected to the jack for 911 service (because our jack is behind the bed and would be useless if we should need to use it in an emergency at night and had to go behind the bed to plug it in) and we receive and incoming phone call on the landline at some time will we receive charges?