The power of the Cisco Unified Communications system extends throughout the enterprise by delivering a powerful, converged wireless solution with intelligent wireless infrastructure and an innovative product with the latest version of the Cisco Unified Wireless IP Phone 7920 Version 3.0. The Cisco Unified Wireless IP Phone 7920 is an easy-to-use IEEE 802.11b wireless IP phone that provides comprehensive voice communications in conjunction with Cisco Unified CallManager and Cisco Unified CallManager Express. Increased security with Cisco Extensible Authentication Protocol-Flexible Authentication via Secure Tunneling (EAP-FAST), improved battery life, and support for additional languages are several of the enhancements to the Cisco Unified Wireless IP Phone 7920 Version 3.0. Sold without battery (CP-BATT-7920) or AC Power Supply (CP-PWR-7920 or CP-DSKCH-BUN-7920) !