An anonymous reader writes "Sam Houston State University (SHSU) is moving 6,000 users off a Cisco VoIP platform to an open-source VoIP network based on Asterisk. One big driver, of course, is cost. From the article: 'We thought that it will be more cost effective in the long run to go with an open source solution, because of the massive amounts of licensing fees required to keep the Cisco CallManager network up and running,' says Aaron Daniel, senior voice analyst at SHSU."
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