T-Mobile Wi-Fi Calling

I have a Passport running 10.3.1.1154 and want to know if anyone has been able to download or able to successfully run the T-Mobile Wireless app for wi-fi calling with any of the past or present 10.3.1 OS versions?

If not, what is the best OS and radio version to successfully enable wi-fi calling?

Any hints or suggestions to enable the Passport to utilize T-Mobile wireless calling would be greatly appreciated...

Or am I just out of luck using the current leaked version (10.3.1.1154) on my Passport...

Thank you for suggestions/comments/etc.

Unfortunately, I think you are out of luck. My understanding is that BlackBerry has to enable it in the radio, which they would probably do if T-Mobile sold the Passport. However, since that is not the case, I doubt they would enable a feature for a carrier that isn't going to sell its products.

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