Polycom VVX 501 SIP 12 line IP phone with HD Voice.

The Polycom VVX 501 multimedia IP phone is a 12 SIP line IP phone with HD Voice. It will handle up to 12 SIP registrations and features a 3.5in TFT color capacitive touch screen that reacts to gestures, similar to how most mobile phone interfaces work today. The VVX 501 has 2 USB 2.0 ports for media and storage applications which allow you to use the display on the phone for multiple uses, such as built in web applications, digital photo frame, news, sports, weather, or even as an extension of your PC desktop.