SB QST @ ARL $ARLB003 ARLB003 Hams help out during OK telephone emergency ZCZC AG03 QST de W1AW ARRL Bulletin 3 ARLB003 From ARRL Headquarters Newington CT January 3, 2003 To all radio amateurs SB QST ARL ARLB003 ARLB003 Hams help out during OK telephone emergency Hams responded with emergency communication when Broken Arrow, OK, a town of 75,000, experienced a citywide telephone outage on December 23. A request went out for amateurs to assist with emergency effort at the local Emergency Operations Center and three area hospitals. Several hams from the Broken Arrow Amateur Radio Club responded to the call, staffing positions at the Broken Arrow EOC and three hospital emergency rooms. The operation lasted about five hours, with messages between the EOCs and hospitals being passed. Lines of communications were also opened with the Oklahoma State Department of Civil Emergency Management in Oklahoma City via the HF amateur station in the Broken Arrow EOC. The trouble with the phone system was created by the loss of SS7 signaling, a digital protocol for call routing. Unable to route a call out of the local exchange, Broken Arrow phone customers could not call outside the city limits. As a result, the City of Broken Arrow implemented its Telecommunications Failure Plan. NNNN /EX