I tried calling the common room at the Halifax Hospital Psychiatric Unit, since that seemed to give me the best chance of getting someone who could get mom on the phone. The line just rang and rang for a solid minute, and then someone clearly picked up the telephone and just started randomly hitting buttons on the receiver.
I hung up and called the nurses station, but it just rang for a few minutes and nobody ever answered.
The Halifax Hospital Psychiatric Unit is a hell-hole.