I'm concerned about the coming sunset of Verizon CDMA in a year (late 2019) because VoLTE in my locale is terrible. With CDMA I had great service everywhere I went, inside and outside -- and never dropped any calls. With Verizon VoLTE I am dropping calls several times a day around Syracuse, NY. And in building service is terrible -- often unusable. If CDMA is shutdown without VoLTE having the reliability for VOICE that CDMA once had, I will very likely change carriers (probably AT&T). Please don't me Verizon has to shutdown CDMA to improve VoLTE -- sorry can't wait for the transition to complete. Phones include iphone 6S, Samsung S8 and others, so it isn't just one phone or one customer.