The Cisco Wireless IP Phone 8821 gives employees the freedom to make and receive business calls throughout a compatible wireless network without being tied to a desk. Designed for active business environments, the 8821 combines six-line calling, HD voice, a full-duplex speakerphone, Bluetooth connectivity and dual-band Wi-Fi in a compact wireless handset. Its 2.4-inch color display provides clear access to calls, contacts and phone functions. This is a Cisco enterprise Wi-Fi IP phone. It requires compatible Cisco Unified Communications Manager infrastructure and is not a cellular phone, DECT handset or standalone home telephone.