I am dropping calls like crazy starting today. I have perfect LTE service, same location in my home office I am always in. I called Apple, they ran diagnostics and said there is nothing showing as wrong on my phone.
Not sure if it is related, but I'm now completely unable to turn on Wifi calling either (thought maybe that would be a work around since I couldn't keep a call for 5 minutes). It gets to the emergency address screen, flashes "success" quickly, but doesn't activate.
Getting frustrated.