Question about AVM FRITZ!Box 7530 International / CH

The FRITZ!Box 7530 is predestined for operation on an xDSL connection. Alternatively, an Internet connection can also be established via an existing Internet connection LAN1 or an Android mobile phone connected via USB. I do not know which TMobile provider in which country is being discussed here and whether DSL is available. For Internet access via mobile phone, the FRITZ!Box 6820, 6850 or 6890 are the better choice.