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Vendor or in-house?

I am considering implementing VoIP at my organization. Which solution would be more cost-effective, a service like Vonage or an in-house solution?
That depends greatly on where Vonage has service, if their service will meet your needs, the number of people you intend to connect and so on. You can read my article on ROI and TCO and use those formulas to help determine what is the best for you.
This was last published in November 2004

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