I have an iPhone 11 and my calls are going straight to VM. This has happened more often over the last month, but it happened intermittently before that. Purchased new straight from T-mobile 4 months ago. My wife will call me and phone rings, but I was just waiting on a phone call from a service rep and it went to VM 4 times while the phone is in my hand, without a single ring. My Apple Watch will vibrate occasionally for calls, but very hit or miss. I have turned phone on and off several times without much effect. No new software updates available. No new app updates available. All of the “straight to VM” topics seemed to be unlocked Samsung and LG phones. Any help is much appreciated before I throw the phone on the ground and jump up and down on it and switch services...again.