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Foundations of Green IT: Consolidation, Virtualization, Efficiency, and ROI in the Data Center by Marty Poniatowski

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Chapter 14. Voice over Internet Protocol (VoIP)

This chapter covers the business drivers, solutions, and technologies involving Voice over Internet Protocol (VoIP) implementations. VoIP is one of the most misunderstood technologies I’ve worked with in my client base. VoIP has had a lot of publicity and fanfare recently and for good reason; it saves businesses money in a variety of ways that I describe shortly.

To begin, there are a lot of moving parts involved with VoIP which intimidates most of the experienced telecommunications technologists I interact with on a daily basis. Financial decision makers also have a lot to consider with VoIP because, in some cases, the payback is not crystal clear and requires some detailed analysis. ...

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