No motion alert sound on my phone when away from home

Hello all, When I am at home and there is motion detected by my ring cam, my phone will give me a motion alert sound. When I am away from home, it does not. Last week I was sitting having drinks at the bar, and I heard ring alerts firing off all around me (same at work). I was waiting for wife. She was waiting on a handy man to finish up a job before joining me. I went on the app and watched him come and go from the house. NO sound! When I was home, each time he came and went through the front door, I got sound. What the heck is going on here? Any ideas? Thanks! Bob J.