The Avaya 1616-I is a cost effective IP telephone. At an attractive price point; it provides the customer with basic communications needed. The Avaya 1616-I is for users who answer incoming calls, monitor several line appearances, transfer customers to different departments or extensions throughout a typical day. The Avaya 1616-I features an one touch line/feature/speed-dial buttons without the need to scroll on-screen lists. The Avaya 1616-I is also expandable with a BM32 to add 32 additional buttons.Features 16 Line Appearances Feature Keys Dual Led's: Red, and Green Fixed Feature Keys for Common Functions Such As; Conference, Transfer, Drop, Hold, Mute, Contacts Call Log, Redial, Speaker, and Headset Headset Interface Dual Position Flip Stand One Year Warranty Included with Extended Warranty Options at Low Prices! Specifications Display: White Backlit, 3.5" 4 Rows by 24 Characters Adjustable Tilt Display Eight Line Appearances with Dual LCD's 2-Way Speakerphone Message Waiting Speakerphone Volume Buttons Menu Buttons Ethernet: Dual 10/100 ports POE: 802.3af Class 2 Device, Also Supports a Local Power Supply Telephony Application Button Three Softkey Buttons Call log: 100 Recent Calls Contacts Application Protocol Support: H.323 Codec Support: G711, G726, G729A/B Language Supported: English, French, German, Spanish, Italian, Dutch, Portuguese, and Russian Compatibility Avaya Communication Manager 3.0 or higher Avaya IP Office 5.0(22) or Higher Local or Centralized Electrical Power HTTP File Server