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9-1-1 COMMUNICATIONS FLOW (NFPA 1221) 17 <br /> Alarm Alarm Alarm Dispatch Wheels <br /> Emergency Initiated to Sounds at Answered Starts Rolling <br /> Event 9-1-1 9-1-1 at 9-1-1 <br /> . . <br /> Detection Transmission Answer Alarm Unit Units <br /> Time Processing Notification Respond <br /> � � <br /> Time Not 95% < 15 80% < 60 Time Career <80 sec. <br /> Varies Specified 99% < 40 95% < 106 Varies Volunteer <90 sec. <br />