I am having issues with making and taking calls at home as well. I never activated LTE voice and data. My issue isnt limited to just at home however. Since upgrading to the iPhone 6 + I have very poor reception, missed called that never even ring on my end. Place calls that get "network busy" message. etc etc etc
Not sure if it's just a coincidence that when I got my phone around the time Verizon sold some of their towers, or if it has to do with the iPhone?