Notifications silenced on iPhone when they are not actually silenced - V2

I have my iPhone sitting on my desk facing me on one of those magnet stands. When a text message or a phone call come in they do not make any noise, no notification. If I'm looking a the phone I see the notification on the screen but no sound so unless I'm actually looking at the phone I'd never know there was a text or phone call.

The phone is not silenced and I don't have notifications turned off. I've also tried all the 'tricks' to get it working.

Part of me thinks that since the phone is facing me it thinks I'm looking at it and so will not make a sound but I'm not always looking at my phone :)

This has caused many many delayed responses to text messages and phone calls simply because I never heard a notification and I have to physically look at the phone to see if any calls/texts came in.

Anyone else have this?

I subscribed to a previous post like this but it never showed up in my 'subscriptions' Makes me think it's hidden :)