"Frequentis is a leading provider of command and control centre solutions for organizations responsible for public safety. Frequentis turned to NServiceBus as the foundation of a nation-wide deployment of police and fire brigade control rooms of a major European country. Delivering over 7.5 million messages per day across more than 400 endpoints spanning 15 country-wide sites, the fully transactional model of NServiceBus (deployed with MSMQ and SQL Server) guaranteed zero message loss for the most critical system services like emergency messaging over analog and digital radio. In addition to its reliability, Frequentis chose NServiceBus for its ease of deployment, its ability to scale to additional sites, as well as its flexibility in introducing new services."