waazzupppp
New member
There might be some confusion to how T-Mobile's Wi-Fi calling actually works... Their current Wi-Fi Apps are not the same as the hardware based UMA connections they used to use. The App simply routes the call to T-Mobile's network over an internet connection rather than a cellular connection. T-Mobile's backhaul receives the signal from the internet and processes it through the system like a cellular call. This is why you have serious problems with hand-offs from Wi-Fi calling to cellular calling usually. It is also why MMS won't work over Wi-Fi calling (since MMS requires a secure data connection to the servers to send/receive messages).
There's no magical hardware needed to send a signal to the T-Mobile's servers. UMA is a hardware based system, but that is not what T-Mobile is deploying on Windows Phone or Android devices. The solution they have is completely software based.
There's no magical hardware needed to send a signal to the T-Mobile's servers. UMA is a hardware based system, but that is not what T-Mobile is deploying on Windows Phone or Android devices. The solution they have is completely software based.