Hi, I've some doubt between BIS and BES.

If my company has BES, do I still need BIS to retrieve the email? My company's BES system admin could just well give me the activation password, right?

And if I get a BIS, do I still need 3G unlimited data? I can still surf everything on BB via BIS? Even abroad with normal monthly fee applied.

It would be very appreciated if anyone can clear my doubt here.

Thanks!