http://www.shoretel.com/ - makes the best VOIP phone system around. It will do everything you want it to do, easy to set up, and comes with an SDK. Knock yourself out.
www.micoy.com - these guys have already perfected the real deal. No extrapolation needed. Having actually experienced this technology, I must say it is quite impressive. They just recently won a worlds best technologies award by beating out the US Navy.
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http://www.shoretel.com/ - makes the best VOIP phone system around. It will do everything you want it to do, easy to set up, and comes with an SDK. Knock yourself out.
www.micoy.com - these guys have already perfected the real deal. No extrapolation needed. Having actually experienced this technology, I must say it is quite impressive. They just recently won a worlds best technologies award by beating out the US Navy.