T-Mobile International AG is a holding company for Deutsche Telekom AG's various mobile communications subsidiaries outside Germany.

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How can I enable calling over Wifi for a T-Mobile based Moto X?

T-Mobile allows for unlimited calling when I'm tethered over Wifi, on my old Blackberry Bold this was called "UMT" or something like that (it would appear in the status bar). Since I still have poor ...
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running app is shut down when screen powers on

I recently updated my Samsung S3 (T-Mobile) with the OTA update to Android 4.1. Ever since the update, after the phone screen powers down (manually or on timer), turning the screen back on closes the ...
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How to use at&t signal on tmobile note3?

Where I live tmobile had pitiful data signal but at&ts is great stuck with tmobile for awhile so was hoping for a way to use there signal? Phones rooted on stock rom/kernel via root de la vega. ...
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Galaxy S 4 phones which react to Wifi differently

I'm asking why one of my S4's recognizes my Wifi & gets to the WEP key popup and my other S4 doesn't? The second phone lists the Wifi however just hangs, then never connects. What gives? Carrier ...
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an not find the t-mobile network, but it shows always: AT&T, Sprint and 311-660

I replaced my Nexus 5's display. Now my device can not find the t-mobile network. (it sporadically works) But it shows always: AT&T, Sprint and 311-660. T-mobile reception on other devices is ...
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Is there a known to be good T-Mobile Android Device that will work with T-Mobile Wifi Calling and a custom ROM

Am evaluating switching to T-Mobile in the US and bought a prepaid SIM to try it out. Coverage is poor in my house with my Galaxy Nexus (Maguro/GSM) with CM 10.2. I'm open to buying a new phone, but ...
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How can I use a Verizon Galaxy Note 2 on T-Mobile?

I bought a Verizon Galaxy Note 2 thinking I could use it with T-mobile. I can call & text but I'm not getting any data. I've been in the settings and changed them from global to LTE/CDMA to ...