Open source PBXs make corporate gains; how much is up for debate – NetworkWorld.com

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Open source PBXs make corporate gains; how much is up for debate
NetworkWorld.com
He credits the Asterisk open source PBX, with Nortel comes in second for 85% of those deployments or 15.24% of overall installations last year. Nortel comes in second with behind all open source with 16.56%, Cisco comes in third with 12.53% and Avaya …

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