There's been a lot of great international roaming conversation here. I didn't see any discussion of the other use case for dual SIMs - having two phone numbers on the same device. My employer doesn't maintain any telephones at all. The expectation is we have a mobile number on our business cards, email signatures, etc. I'd like to get a second line added for work, so I can keep my 20+ year old personal number "clean". Any experiences with this?