Since getting my iPhone 6+, my phone has been dropping a lot of calls in my house. I finally figured out that my phone was no longer connecting to my network extender. After a day of fiddling around with the extender, I finally realized that the problem was VoLTE (Voice over LTE). I have it turned on for my phone, and in general, I am super happy with it. The call quality over LTE is so much better. Calls are crystal clear and so much easier to understand. However, the problem is that at home, I have a weak LTE signal and a strong 3G signal via my network extender. If I enable VoLTE, the phone will try to use LTE for the calls which sometimes works okay, but frequently drops my calls which is extremely annoying. Verizon really needs to enable WiFi calling so I can finally get rid of the network extender, and get decent phone calls in my home. If they don't implement it soon, I am seriously considering switching to T-Mobile. I don't have a landline, so I depend on my cell phone when I am at home.