Yes phone use is permitted with “Land Line” phones provided by the rig. You can also use Skype and FaceTime if you have an internet connection. read more
As of now, I’m writing this reply from offshore rig. Half an hour ago I had video call from my wife. Before there was smartphone and WIFI, we call home using satellite phone. Now, I can only think of 2 possibility. You know this fellow personally. But unfortunately, due to company policy, he can’t make multiple phone call outside. read more
Mail is not a problem, because it works as on land. But the use of the phone may be problematic, because must use a satellite connection. read more