How to upload to cloud in remote locations

Our application needs live viewing of remote cameras , is there any suggested way for the same.

We saw in forum LTE dongles are not yet supported . What could be a way to integrate LTE modules with the rtl8735b . We would need a USB link for vide upload.

We saw a way to build LTE hotspot using esp32 + LTE module , but that does not seem to be a efficient way of doing this .