We currently have Verizon and it's great everywhere. We switched from Sprint before they merged and it's been so good. We get signal in places we didn't get before with Sprint. Well my husband started a new job near our main airport and for some reason he has no signal and can't do anything on his phone at work. He says it has to do with towers he thinks the airport may have something to do with it but you would think he would roam on another carriers tower but he has no signal. The ones that do have signal all have t-mobile. We were wondering if he could get a tmobile sim and use it on his S22 Ultra with a different number of course just so he can use his phone while at work and then use Verizon at all other times. Is that possible? I love Verizon and our bill is cheap with 4 people plus insurance and I am not looking to switch everyone. But I think just to have one line on tmobile would be to much. But if it's possible to switch out the sim on the same phone he might want to try it as long as he can cancel within a certain amount of time if it doesn't work.