Listen to customer requests, referring to alphabetical or geographical directories to answer questions and provide telephone information. Suggest and check alternate spellings, locations, or listing formats to customers lacking details or complete information. Offer special assistance to persons such as those who are unable to dial or who are in emergency situations. Observe signal lights on switchboards, and dial or press buttons to make connections. Operate telephone switchboards and systems to advance and complete connections, including those for local, long distance, pay telephone, mobile, person-to-person, and emergency calls.