Radvision An innovator providing products and technologies for video conferencing, unified communications over IP, 3G and emerging next-generation networks. http://www.radvision.com/
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VOIP-Info.org LLC. Covers everything related to VOIP, software, hardware, service providers, reviews, configurations, standards, tips and tricks and everything else related to voice over IP networks, IP telephony and Internet Telephony. http://www.voip-info.org/
