[Q] How do I get WiFi calling on a factory unlocked HTC One M8? topic

Just bought a factory unlocked M8 with T-Mobile as my current service provider. The WiFi calling feature is not available, as T-Mobile only offers it on their locked phones. If it's possible to modify the phone to get WiFi calling, can someone please tell me how to do it (step-by-step) or link me to helpful resources? I have never even rooted a phone, but I am up for anything to get this feature. Please help!