Cisco Unified IP Phone 9951 is an executive desk phone with a 5" color display for video conferencing. The display has a resolution of 640x480 pixels and shows images in 24-bit color. Cisco 9951 supports SIP, so you'll be able to integrate it with a diverse range of IP-PBXs, and H.264, so you'll get high-quality video without using too much bandwidth.
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