Polycom VVX 450. Certified Refurbished Includes 90 Day Warranty . . Item # 2200-48840-025 . . The Polycom VVX 450 is a business IP phone designed for performance. It uses Polycom HD Voice technology to deliver natural wideband audio and connect a headset using the dedicated RJ9 port. It supports full-duplex speakerphone with Acoustic Clarity technology for distraction-free conversations. A USB port is built in for media and storage applications. It also features Gigabit Ethernet speed, extensive networking and communications features, 12 line appearances, open SIP support. . . It has large 4.3" color display with 4 soft keys for action selection and navigation, as well as 12 line keys with dual color LEDs. It is ENERGY STAR rated for energy efficiency. . . VVX 450: . . |Performance IP Phone w/ 12 Line |High Definition Audio Technology |SIP Voice Over Internet Protocol (VoIP) |12-Line Operation |Acoustic Clarity Technology |Hearing Aid Compatible |4.3" Color Display |Speakerphone |Dual-Port Gigabit Ethernet Switch |Call Forwarding |Remote Missed Call Notification |Call Transfer |One-Touch Speed Dial |One-Touch Redial |Mute |Do Not Disturb |Call Timer |IEEE 802.3af Power over Ethernet (PoE) Support |Optional AC Adapter (Not Included) |Dual-Port 10/100/1000 Mbps Ethernet Switch |RJ-9 Headset Jack |Multilingual Menu Support (Chinese, Danish, Dutch, English, French, German, Italian, Japanese, Korean, Norwegian, Portuguese, Russian, Spanish, Swedish) |Call Hold / Call Wait |Call Waiting . .