Estimate the return on switching your corporate phone system to one using Internet protocols.

VoIP is cheap for private homes, but it's more complicated to install the technology in a corporation. The example in this Premium worksheet is for a company replacing 100 PBX lines with VoIP, adding an Internet VoIP gateway to an existing PBX, or using an external VoIP service. Return on investment skyrockets for organizations with big per-call costs, especially internationally.

Note: This worksheet should be taken as a rough guide. Make no mistake, your mileage will vary.

To see the details behind this calculator and fill in your own estimates, click on the "Get the Tool" icon above and download the interactive worksheet.

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