Hello, I'm currently using the iPhone 5 in Brazil. I bought my iPhone 5, factory unlocked in the United States about 3 weeks ago. As of right now, I do not have a SIM card for a Brazilian carrier but I will soon get one. Right now, I am sending my iMessages through my email.
Once I buy my SIM card here, will it it still be free if I leave the "Caller ID" option as my email?
If I need to text a Brazilian friend, I will have to turn on my phone number within the Caller ID options. And if someone iMessages me from the United States, will I be charged with internaitonal texting?
Is it possible to keep using my email solely for United States numbers and my actual number here in Brazil for Brazilian numbers?