 So it's GSM and CDMA are the two different cell frequency types. Correct. I can't remember which is which. So if your company uses CDMA, then you want to buy a GSM or vice versa. Because those are the two different. I think Verizon is GSM, and I think all the rest are CDMA, but I might be wrong. It might be reversed. I'd have to look it up. I would, too. Yeah. Yeah.