By chance I saw this: https://support.google.com/fi/answer/6330195?hl=en It allows the data to be used on a second device, on the same SIM/number. Not SMS

By chance I saw this: https://support.google.com/fi/answer/6330195?hl=en It allows the data to be used on a second device, on the same SIM/number. Not SMS though, so this is going to be a limited solution. I also don't know how this works across the globe.