Calculating the total cost of ownership (TCO) of an Internet protocol (IP) telephony system is complicated. And you need to know the return on investment (ROI). But knowing the TCO doesn’t make it easy to figure out the ROI—because the benefits of IP private branch exchange (PBX) aren’t easy to quantify. You can, however, get an idea of your ROI by knowing 10 ways a new IP phone system can repay the money you spend on it.
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