EnGenius DuraFon-SIP Phones
EnGenius DuraFon-SIP phones are ruggedized long-range wireless IP phones. Have more room to roam with DuraFon-SIP handsets, which use a secure proprietary 900 MHz protocol to communicate wirelessly over a greater distance than DECT with greater reliability than WiFi. The base stations connect to your LAN using the open SIP standard, giving you first-class interoperability. You can build a modular system for large deployments, using base stations as repeaters.
IP Phone Warehouse is an authorized EnGenius reseller.