T-Mobile compatibility

[Jay_P]

Sony I have a z3c , but it does not have the band12 and wifi calling features.
Now for the new phone please add these features in.

[CameronT]

Hi @Jay_P,

The Xperia X Compact does support band 12, but WiFi calling is dependant on the network, not the phone. Generally, you will have to purchase the device from T-Mobile in order for your device to support this as it is part of the firmware.

[Jay_P]

Hi , not necessarily there are other phones unlocked which are T-Mobile compatible
http://www.spectrumgateway.com/compatible-phones#unlocked

Sony just needs to go through TMobile certification

[CameronT]

@Jay_P,

Yeah, this is why I said Generally. But it is up to T-Mobile to provide the support, not Sony Mobile.