The Polycom VVX 311 IP display speakerphone features exceptional power in an entry-level phone, perfect for start-ups or smaller companies with tight budgets. The VVX 311 is a 6-line, 2 port Gigabit Ethernet phone with an LCD display that supports both SIP and SDP protocols, capable of supporting up to 3 expansion modules, and provides crystal-clear HD voice. Combined with the VVX311’s modest price point, this Polycom product features the same world-class engineering that goes into its more advanced phones, part of what makes the Polycom VVX311 such a powerful entry-level device. Orders of all Polycom VVX 311 phones, both new and refurbished