Hear every nuance with pro-grade audio plus Poly HD voice and Poly Acoustic Clarity technologies. Reduce distracting background noise with Poly Acoustic Fence technology. With a simple, intuitive interface; ergonomic design; and large user touchscreen you get one-touch access to your contacts and meetings. Dial up your productivityGet to work fast with the 7-in color multi-touch LCD display. And with the simple and intuitive interface, Bluetooth® connectivity, integrated Wi-Fi, and Poly quality audio youre ready in a snap. Design Mounting Desk/Wall Product colour Black Product type IP Phone Performance Password protection type User Hearing aid compatibility Yes Unicode UTF-8 character support Yes Dual-Tone Multi-Frequency (DTMF) modes In-band Operating system version 9 Operating system installed Android Phone features Caller ID Yes Management features Volume control Touch Integrated voicemail Yes Display Backlight colour Multicolour Backlight display Yes Touchscreen type Capacitive To