In many countries, for example, Russia where I live, you need to show an ID to obtain a SIM card. Often this is used by law enforcement to track people. Sometimes corrupt officers sell people's location data for couple hundred bucks (imagine stalking opportunities).
I want to carry a temporary SIM card and receive calls on my main SIM card using the following scheme:
phone at home with main SIM card <-> VPN <-> My server <-> VPN <-> phone with 2nd SIM card.
Are there any software solutions to do this? I imagine it like a remote display app with forwarded notifications of incoming call or text.