Can you FaceTime with a person from another country?

I have a pen pal, and we decided to video chat on FaceTime, tomorrow for me and later for her. I have an ipod touch and she has an iphone. She lives in Guiyang, China. I have her email added in my contacts. I was just wondering if I can contact her just by calling her or I have to do something else? If I need her country's code number (or something like that) can you tell me it?

FaceTime works over the Internet so all you need is the other person's email address (and they probably need yours too).

Just her email, that has been registered to the facetime account, and thats all!