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IMS, Not VoLTE, is the Future of Voice with T-Mobile

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does that mean


Feb 28, 2012, 7:41 PM
does that mean without the IMS-based client, you can't make phone calls over LTE on T-Mobile? Currently the wifi-calling client isn't a downloadable app because it requires a custom ROM and is only available on stock T-Mobile ROMS. Assuming that will continue to be the case, does this mean if I buy a future LTE 'nexus' phone or flash a different ROM on my LTE T-Mobile phone that I'm SOL if I wanna make calls over LTE?

Feb 28, 2012, 7:42 PM
oops I meant 'custom kernel' not ROM

Feb 29, 2012, 8:53 PM
I don't think so. I know that it does not matter the version of android, from what I understand, the phone must have built-in IMS capability. So far the only phones that T-mobile offers with that new IMS wifi calling is the Amaze, Galaxy S II, and LG Mytouch + Mytouch Q. No other current phones can be used for IMS calling, which would lead me to believe that the phone must support it.

If that is true, then some kind of client should be downloadable in the future -- but I am not sure.

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