from Carolina Alumni Magazine:
Far, far away are the days when students used to line up to use their residence hall’s only phone. Cell phones have now rendered dorm phones so obsolete that student contact information, which included dorm phone numbers, has been excluded from this year’s University directory.
…Students no longer will receive phone books at their residence halls. It seems that students, who prefer to look up each other’s contact information through Facebook and online directories, were throwing the phone books off dorm balconies.