You'll have to top up your credit balance - most likely online if you are already abroad:
How do I top up? Overview of the top-up payment op...
These are the charges for making calls/sending tests while roaming in the US:
Other call charges
When you're roaming in the USA or Canada you'll pay:
| Making calls and calling your voicemail | €1.99 |
| Receiving calls | €1.89 |
| Sending texts | 39c |
| Receiving texts | Free |
*All roaming charges are inc VAT. When making calls, the charge is in a per second increment after the first 30 seconds. Calls received are charged at a per second increment.
(Charges for calls are per minute).
It's pretty pricey so there might be more cost effective alternatives available!
