When my son was in rehab (a very well-respected one), he had access to the phone whenever he wanted...just that he was kept so busy that he had little time to make phone calls. If we wanted to call him, we were put into a voice mail box and could leave a message. We were encouraged to keep things light ("just letting you know I'm thinking of you!") and not to expect return phone calls. He actually only called me about 5 times the entire 6 weeks he was there. He was tooooo busy!