So much for “on call”.
Being on call is different. You are paid a certain amount for each day on call and you have to answer you phone when on call . The problem has been at least for me that I have managers that liked to call me after hours and on weekends to do this or that or cover for the on call person who wasn’t answering their phone. I have stopped answering my phone after hours when I am not on call and my quality of life has improved and I have not been fired. It does me no good to bail someone else out.