I switched to Verizon 6 weeks ago. Picked up the LG v20. About 90% of my calls drop, with or without VoLTE. I travel constantly always attempting to use my phone in major cities. Verizon opened a network ticket on my line and said that everything was normal and working as it should be. I opened a ticket with Verizon executive office, I was informed their network works fine and I could either exchange my phone for a lesser model (at my full expense) or find my own way to get out of their service. I tried my v20 on T-mobile, no issues. I put my verizon sim into a verizon iPhone 6, dropped calls constantly. Replaced sim card, tried on both phones, still drop calls. I usually have a hard time understanding people when they talk to me on Verizon as well.