lte

My house has extremely poor 4G coverage on all 4 mobile operators (and no 5G at all). I get one or two bars independent of the phone. In the summer I can't call a bank or utility company because after 5 or 10mins the call will disconnect. But in winter, when the temperatures are under 0 suddenly...

Hello, Does anyone know of a commercially available USB dongle that can provide both WiFi and 4G/LTE connectivity please? If not is there a technical reason why this is not possible? Many thanks Regards Stephen