The mother didn't answer the phone from others, such as my husband's mom, calling her during the emergency situation I spoke about. I was with the children by myself. I called my husband first, then their mom, then their grandma to have her call their mom while I tended to the wound which I thought needed stitches and a trip to the ER. In the end, I didn't need to take the child to the ER, because I was able to take care of the wound by talking to a nurse on the nurseline. My husband then took the child to see his pediatrician the next day.
And I'm honestly not sure if she'd answer any calls from the school. Last year she refused to give the school her number, but my husband had listed it on the emergency contact list not knowing she didn't want the school to have the number. The school called her twice, but she didn't answer either call, instead she called my husband to share her anger that the school had her number. (my husband found out her refusal about the number was from the fact that she doesn't/didn't pay for her phone and her mother who was paying for it didn't want anyone but my husband and her employer to have the number.) There are reasons the magistrate ordered the way he did in this case by limiting the mother's time and role with the children.
I understand though that it shouldn't be me to call her in situations like the one before, but I will always take care of the children if I am the only responsible adult supervising them.