My T used to have her smartphone near her on the table and with an alarm set to help her manage time. I found it jarring even when she changed the alarm to a low chime.

Can't remember when she started putting it completely on silent. Either way, she either left it on the table by the computer and I don't notice, or has it in her bag tucked away on her side of the table.

Once she left it on and it rang, so she answered it because it's her personal smartphone. She doesn't have a work smartphone. I presumed it was an emergency because she apologised and stepped out.

Her office telephone has rung before, but she rejected the call. Then a nurse knocked on the door and barged in because there was an agitated man rapidly escalating to shouting in the waiting room.