I had a Google Voice US number for almost 10 years that I lost because I could not do a verification from another US number. I verified with Twilio once as I was able to make their product work and receive a SMS from Google Voice but I couldn't make it work the next time.
I had created that Google Voice number back in the day when those SIP apps were a thing which offered you a second number. (I lived in India back then and still am).
I wonder whether there's an international eSIM that I can have without paying a regular "keeping the SIM alive" fee or paying a really really low free and recharge it whenever I want to actually use the data or SMS or calls when I need it which is usually when I travel?
Does any of these providers a retainer SIM that is kinda "pay as you go but no need to pay just to keep a SIM to receive SMS or so"? I would definitely need receiving of SMS.