Hey temp1638! We will be stoked to have you move on over! I'm sorry to say I'm going to come up a little short in my response here, but maybe some of our Community members can help fill in gaps. I can't guarantee that a non-TMO device will be VoLTE capable, simply because we're not able to make any guarantees about equipment that isn't branded (*VoLTE availability will also depend on the signal in your area - which hopefully is awesome). I can tell you that any variant of the S7 that doesn't have T-Mobile software will not be able to use Wi-Fi calling once you switch, since you'd need a "T-Mobile Wi-Fi calling capable" device to be able to take advantage of that feature. I wish there were a way for you to purchase one now and then swap it on out when the day comes! I'd suggest doing just that with our trade-in program and the purchase of a TMO-official S7, but I know the market price for unlocked devices might be higher than the trade-in value. Please let me know if there are any other questions I can help out with - I'd love to make this transition for you as easy as possible.
Hey there! Just wanted to check in and see if you'd been able to make a decision about which phone to purchase! How is everything going?