I’m not sure how doable this is, but there are routers or tablets that can accept a SIM card. You could maybe ask your service provider to give you a second SIM card tied to your number that you could put into it. I’m not sure how calling or texting would work with two SIM cards tied to the same number, maybe your provider could disable these options on the new SIM? I don’t know anything about the inner workings of telecommunications, this is just an idea.
I just played a mission on SP, I misclicked my on-call Red Veil guy (I wanted to use a Simaris trap). I just witnessed him murder an acolyte that popped in. He just killed it in cold blood in the span of like 10 seconds while laughing maniacally. I had no idea he could do that. Get yourself a Red Veil dude, and give him an Astilla Prime. I’m still shook!