I have UT running on N7 gsm "deb". It's clunky to install, but it runs ok. If you try and get stuck, let me know.
However, I don't have a sim card for it, so I can't try gsm/lte
@dobey FritzBox! has this feature as a part of the system. This is one of the features, that make the FritzBox popular.
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