If you need to return a call made to you, I have found that Guest Relations is very helpful is placing a return call to the U.S. But before you leave on the cruise, make sure you tell the person that might be contacting you to ANSWER THE CALL from a Miami phone number (the calls are routed through Miami headquarters) or even if their phone reads POTENTIAL SPAM. This has happened to me twice. First time we were still in port in the Med and I was able to text my daughter to answer any unusual phone number. It was Miami. Second time, my son was attending to our leaking roof that we discovered on the morning we were flying to Ft. Lauderdale. His phone read potential spam and he didn't answer.