Huh I never thought of that (or even knew about VoLTE). I'll look more into that. I am always hesitant to say "it was definitely such and such upgrade" but I ca

Huh I never thought of that (or even knew about VoLTE). I'll look more into that. I am always hesitant to say "it was definitely such and such upgrade" but I can't think of anything else that changed about my phone in mid June except my iOS update. It took me a month or so to realize that it was a persistent pattern, so it's not like I updated on Monday and on Tuesday realized my calls were dropping.