I got my One today and noticed that the Wifi Calling app is not in the OS. Has anyone else seen this? I called TMO and they have no clue about anything. They kept telling my to find it in my app list. Not sure why they think I can't qualify that it was not included. I have the proper OS and firmware all set. Please help if you have seen this and know how to fix it. I have reset my phone and no luck.