Hi all, I was wondering what the best method is to be able to use a Verizon iPhone 6+ on T-Mobile? We're currently paying off our phones under the device monthly payment agreement on Verizon, however have recently moved and noticed the coverage isn't as good, but did notice that T-Mobile gets better coverage here (with the exception of buildings), so didn't know if there was a way to easily get a SIM card from somewhere, or a setting to be able to switch between networks? I saw that the Verizon ones are already unlocked, but was just looking for advice. Thanks so much!!