Ensure personnel safety, provide force protection, and rapidly deploy personnel with the Roam Secure Alert Network (RSAN) Net-centric Alerting System. RSAN is an interoperable, web-based Mass Notification System that allows you to send hundreds of thousands of messages simultaneously to multiple media, including SMS text messaging, voice calls, pagers, and email notification. RSAN’s two-way communications allow personnel to reply to alerts such as reporting to duty or confirming their safety.