A:AnswerIt should, just make sure you have a nano SIM card because when I got my phone, I had the micro SIM but it was too big so I had to get a smaller SIM.
A:AnswerHello! We appreciate your interest in our products. We don't have that information available without access to the device but it is running Android 5.1 Lollipop. We hope this answers your question and helps you with your purchase decision. ^Rod
A:AnswerHello! We appreciate your interest in our products. Please go here https://goo.gl/oGPd7H and follow the instructions to use WIFI calling on this device. We hope this answers your question and helps you with your purchase decision. ^Rod
A:AnswerYes, you can, I have bought this phone while I was in US and I used T-Mobile, I took the phone with me back home(Angola) and it is working perfectly