Polycom SoundStation IP 4000 Conference Phone

About this item For SIP-enabled businesses Full-duplex performance Gated microphone technology Expandable for wider coverage Backlit graphical LCD Product information Product Dimensions 10 x 10 x 6 inches Item Weight 5.34 pounds ASIN B0008JFJEK Item model number IP 4000 Customer Reviews 3.6 3.6 out of 5 stars 6 ratings 3.6 out of 5 stars Best Sellers Rank #979,569 in Office Products (See Top 100 in Office Products) #814 in PBX Phones & Systems #1,889 in VoIP Phones