text: My last example is for emergencies. If your schools power went out and you needed to call your parents to come pick you up. The school phones wouldn't be able to work, so you would need to pull out your cell phones. Also, what if the school phones where being repaired, and you needed to call the fire department or the police because of a fire or someone in the building who has a weapon on them. If the school had to close early, and everyone was using the school phones to call their parents, you could just pull out your cell phone to call them quicker so you wouldn't have to wait.