The first thing to do is to check that your phone is set up to work abroad.
Here are some answers to help you
BT Mobile: What do I need to do before I go abroad?
How do I use BT Mobile abroad?
You can use your BT Mobile SIM abroad, you don't need to call us or do anything to activate it.
How do I pick up my BT Mobile voicemail from abroad?
Find out more about setting up a BT Mobile voicemail PIN so you can access it from abroad.
What is Roam Like Home?
Find out how you can use your mobile allowance in some destinations abroad.
Go back to: What can we help with?