Grandstream GXV 3140 Multimedia Video Phone The Grandstream video phone is an advanced IP video phone based on SIP and H.264 standard, competitively priced and easy to use. It combines sleek design and technology features with excellent picture quality, ease of deployment and broad interoperability with 3rd party SIP products. The device supports real-time high-quality video at bandwidths as low as 64kbps. The phone features an adjustable video camera to adjust vertical angles and sports a wide LCD screen enabling high-quality video calls and multimedia functions.