[ashley_bc]

If I have a Rogers account in Canada and wants to use my Tmobile SIM when I go to the US, does that interrupt my emails? (BIS) Do I have to set them up again as new registration?

Right now I set up all my emails through Rogers Blackberry website. But when I cross the border, I don't want to lose the email. I want to use the same email accounts using Tmobile. So, will there is interruption or will I be able to use my email accounts like its Rogers also?

[TroyDBrown]

You will need to have them registered with both companies and have a BlackBerry Data plan with both companies.

The only issue is I don't know if RIM will allow that because the PIN would have to be assigned to two carriers.

[Sith_Apprentice]

you would be unable to normally have two different numbers registered to the same PIN. I do not think RIM will allow this. However you could change device or delete your BIS account on Rogers when you travel, and just use that PIN and re-add the integrated accounts on tmobile. and then switch the process around to go back when you go back to Rogers. the long way yes, but it will work