Polycom Sound Point IP 650 Offering a range of advanced features, including a backlit greyscale LCD screen, this executive phone from Polycom is expandable with up to three additional modules, & it is fully interoperable with all leading SIP-based IP PBX & Softswitch telephony platforms. Intuitive User Interface Offering enhanced productivity & easier deployment & maintenance, the Polycom Sound Point IP 650 is also a pleasure to use. It also features a six-line interface which may be expanded to 12 lines with the addition of the Sound Point IP Expansion Module. Wideband Audio Support The Polycom Sound Point IP 650 features high-definition audio thanks to the greater bandwidth afforded by Web-based telephony systems, & it also deploys Polycom's Acoustic Clarity Technology & a G.722 wideband audio codec. Why Should You Buy this Vo IP Phone? Versatile & expandable, the Polycom Sound Point IP 650 is a perfect choice for growing communications departments needing reliable telephony hardware.