Originally Posted by asianmaze
I'm from the Uk and on T-mo so I will try to help.
It it's a genuine T-mo sim and you have either pay as you go or a contract with them, then you will have no problems using it. What you will find is that it's very expensive.
Using a local card won't work through T-mo (I'm pretty sure) as T-mo will want you to roam using their sim.
Providing the phone still works with another sim in it you should be able to use the local sim. (I think that is what is meant by unlocked) Best idea, I think, is to try a different provider's sim in it now and see what happens.
Thank you. The phone was not mine. It belongs to my boss. It does come with T-Mobile SIM card. It can be use in S'pore with autoroaming. I was task to setup the email for her. But no info provided I do not know whether it come with Blackberry Internet Service Plan. She wants to access to COY's email service on the go... If she really have that plan... where to setup? Many thanks.