✔ Factory Installed Device Certificate The Polycom VVX 450 Business IP Phone is a high quality, twelve-line, color, performance IP phone for businesses of all sizes. It is ideal for knowledge workers, executives and upper management. Condition ---Brand New, Factory Sealed Warranty ---1 Year Warranty Polycom VVX 450 Features ---4.3" color display (480 x 272 pixels) ---12 lines (programmable line keys) ---4 context-sensitive soft keys ---4-way navigation cluster ---Fixed feature buttons include speakerphone, headset, mute, hold, volume up/down, transfer, messages ---Message waiting indicator ---Dual port 10/100/1000 Gigabit Ethernet switch ---Dedicated RJ-9 headset port ---Two USB 2.