How to Use a Call Box
Call boxes in San Bernardino County operate on a digital cellular signal. Because each call box is equipped with a large antenna, and is powered by solar energy, the boxes have a reliable power source and can pick up a cellular signal in areas where consumer cell phones cannot get a signal.
All call boxes in San Bernardino County are equipped with instructions inside the call box, explaining how to use the call box. Call boxes are simple to use:
- Open the box, pick up the phone handset and press the red button one time.
- When an operator answers, he/she will ask you a series of questions.
- If you have roadside assistance or other pertinent information (rental car information), have that paperwork with you at the call box when you make the call.
- When you are finished, place the phone handset back into the cradle and close the call box’s front door.


