Cell phone policy

What does everyone have for a cell phone policy at their center? Just got hired was told no cell phone policy. My first week there 3 teachers in the next room (infants) are on their phones while babies playing around them/on their laps! I’m like ok maybe it’s something important they need their phone for. Then come to find out they’re txting parents about their child whether it be for a sickness or just a cute pic of them doing something throughout the day. Like what?!! How are parents even ok with this knowing their child is in their care while being on their phones?!