I’ve had the same issue. I even switched carriers today thinking it would solve the issue, but it’s obviously across the carrier board.
today I contacted Apple support and they insisted it’s the carriers issue. I insisted it’s an Apple issue, so they got a supervisor on the phone who told me “99% of the time this is a carrier issue”. I insisted this is Apple’s issue so he checked further and said “huh, it’s actually the device”.
Well I’m going to be getting another call from him this afternoon to continue trying to resolve the issue, and he said if he can’t do it he will be getting the engineers on the phone with me.
Persistence is key when it comes to companies like this who promise a great device (and charge a lot of money) and it doesn’t live up to the promise.
I’ll keep this group discussion updated on what happens.