PURVIS is a technology solutions partner that develops, implements, and maintains mission-critical solutions for federal and local governments. Partnering with PURVIS means peace of mind so you can focus on protecting life, safety, and property. The PURVIS Fire Station Alerting System™ (PURVIS FSAS™) is an IP-based automated voice dispatch and station alerting solution designed to automate the process of alerting fire and rescue personnel, enhance communications, and decrease response times.