Telecommunications, located at 6100 Posvar Hall, operates the University's telephone system and provides switchboard service, individual line service, and itemized billing, as well as providing assistance in ordering and servicing telephone equipment, obtaining directories, and . See the "Campus Telephone Services" section ("Green Pages") section of the University of Pittsburgh Telephone Directory for instructions on use of the University’s telephone system. For more information, telephone 412-624-4357.