iMore

I hope this is not off-topic if so I apologize, but it seemed "general" for the iPhone and I can't find anything about it anywhere!

If I go out of the country - and a friend sends me a text message from the US - do they inadvertently get charged additional because I am out of the country, or no extra charges since I am a US/AT&T cell phone number?

I understand all the international fees associated with MY phone, just wondering if friends will be hit with extra charges.

Thanks!