Upgrading the switch
MCCONNELL AIR FORCE BASE, Kan. -- Airman 1st Class Jason Barker works on a telephone switch here Jan. 24, by adding 2,000 digital quality lines with call tracing capabilities. Airman Barker is assigned to the 22nd Communications Squadron. (U.S. Air Force photo by Master Sgt. Maurice Hessel)
PHOTO BY:
Master Sgt. Maurice Hessel
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