Case study

Continuously Available and Reliable CAD Systems: St Charles County Department of Dispatch & Alarm

Continuous availability for dynamic, cross-jurisdictional CAD speeds response time to save lives

When a 911 emergency call comes in, every second can mean the difference between life or death, a total loss of property or saving irreplaceable belongings. In St. Charles County, Missouri, the Department of Dispatch and Alarm keenly under- stands the importance of time when responding to a critical situation and meets the challenge head on with a robust, highly reliable CAD (computer-aided dispatch) system built on Stratus® ftServer® systems and TriTech Software Systems’ “TriTech” VisiCADTM software.

Quick Facts

Solution Profile

  • Countywide dispatch provides cross-jurisdictional service for 34 re stations and 16 ambulance bases
  • Responds to 40,000+ calls per year
  • Always assigns closest unit to urgent incidents, including dynamic unit swap based on real-time location and status data
  • Builds in continuous availability


  • Stratus® ftServer® systems
  • TriTech VisiCADTM computer-aided dispatch software
  • TriTech VisiNet MobileTM wireless in-vehicle application
  • Microsoft® Windows Server® 2008 operating system
  • Microsoft SQL Server® 2008 database software


  • Stratus support services
  • TriTech Support Services

Full Case Study Below