Trinity's main campus in Deerfield, Illinois is experiencing some technical problems with the main switchboard line (847-945-8800). If you need to reach Trinity by phone, please call 847-317-7008, or use the online directories (http://www.tiu.edu/tiu/directories) to call your party directly. We are working with the local telephone company to get these issues resolved promptly and apologize for any inconvenience this may cause you.