The EnGenius Durafon-SIP Telephone System implements a high-powered 900MHz proprietary air protocol, with high RF transmission and sensitivity to provide superior range and coverage for the industrial market; covering up to 250,000 sq. ft. indoor, 3,000 acres outdoors and penetrating up to 12 floors. The durable, rugged handset is designed for use in harsh environments and tested to withstand 6-foot drops, over 50 times onto concrete floors without breaks. By simplifying and expediting system deployments, this phone system lowers overall equipment costs and ensures less downtime through its proven reliability, reducing overall operating expenses for the life of the system.