Cisco Unified IP Conference Phone 8831 Display Control Unit - control panel with high definition audio quality, full-duplex two-way wideband, media encryption, and hands-free speaker Cisco Unified IP Conference Phone 8831 Display Control Unit - control panel is another commercial product from Cisco. It enhances conference room experiences for guests as well as hosts. High definition HD audio quality gives clear and easily audible voice quality. A 360-degree coverage makes it ideal for every type of conference room. You get superior sound quality with clarity and precision. The control has a large high-resolution display screen of size 3.5 inch and 396 x 162 pixels. The device automatically classifies the incoming messages for the user. With the help of this feature, you can effectively and quickly call them back using direct dial-back capability. Our Take on the Cisco Unified IP Conference Phone 8831 Display Control Unit - control panel: Cisco Unified IP Conference Phone 8831 Display Control Unit - control panel is a very simple and scalable product. If you are a business owner or holds decision-making power in your organization, buy this product. You will give the ultimate conference room experience to users. This unified communication solution will meet the expectations of everyone and will accelerate business advantages. No need to worry about the safety of data transmitted through the device. It has device authentication and signaling features through 802.1.x supplicant (TLS) and SRTP. Media encryption using SRTP with AES-128 makes it safer so you need not worry about data hacking or leakage through the device. Cisco Unified IP Conference Phone 8831 Display Control Unit - control panel has a detachable control panel. A user can easily access different features without checking the whole unit separately. Through the control panel, you can get a view of devices that are mute. The phone captures a full voice spectrum as it has a two-element speaker