I understand that international plans give the person who paid for a plan the ability to make outgoing texts or calls to someone at no extra charge.
What I'm unsure about is if I text someone who has a local US number, but is not located in the country at the time, will I get an international charge for texting or calling them?
For this question, the cellular company is AT&T. I'm in the US and the travelers with the international plans will be in Punta Cana and Canada.