Senior Airman Sharon Navarro, 482nd Communications Squadron Knowledge Operations Manager, checks for dial tone after connecting a new phone line in the Telephone Central Office at Homestead Air Reserve Base, Fla., Mar. 14. The Telephone Central Office hosts all of Homestead ARB's phone lines, alarm circuits, commercial communications lines, and television services. (U.S. Air Force photo/Senior Airman Nicholas Caceres) Senior Airman Sharon Navarro, 482nd Communications Squadron Knowledge Operations Manager, checks for dial tone after connecting a new phone line in the Telephone Central Office at Homestead Air Reserve Base, Fla., Mar. 14. The Telephone Central Office hosts all of Homestead ARB's phone lines, alarm circuits, commercial communications lines, and television services. (U.S. Air Force photo/Senior Airman Nicholas Caceres) Senior Airman Sharon Navarro, 482nd Communications Squadron Knowledge Operations Manager, wires telecommunications cable in the Telephone Central Office at Homestead Air Reserve Base, Fla., Mar. 14. The Telephone Central Office hosts all of Homestead ARB’s phone lines, alarm circuits, commercial communications lines, and television services. (U.S. Air Force photo/Senior Airman Nicholas Caceres) Please hold while your party is reached 482nd Fighter Wing Public Affairs 3/21/2013 - HOMESTEAD AIR RESERVE BASE, Fla.  -- Senior Airman Sharon Navarro, 482nd Communications Squadron Knowledge Operations Manager, conducts maintenance in the Telephone Central Office at Homestead Air Reserve Base, Fla., Mar. 14. The Telephone Central Office hosts all of Homestead ARB's phone lines, alarm circuits, commercial communications lines, and television services. (U.S. Air Force photos/Senior Airman Nicholas Caceres)