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The present study has as theme the ROI (Return on Investment). The objective of the study is to explore the application of the ROI in a situation of Information Technology (IT), more specifically the implementation of the VoIP technology (Voice over Internet Protocol), accomplished in ThyssenKrupp Elevadores. The analysis also includes the availbility and quality of the service, fundamental items to evaluate the return on the investment of a wide perspective. As justification for this research, the low amount of publications on the theme in Brazil, while in the corporate scenery increases the analyses of ROI on IT. The research was developed in an exploratory optics, making use of case study. The data were collected through analysis of documents (secondary data) and interviews, with nineteen respondents (users, support analysts, IT manager and Controller). Content analysis was used for the qualitative data simple and statistics for the quantitative data, besides financial formulas. The conclusions of the research show that the ROI of the project was satisfactory, but, more than that, it shows an effective form of application of the analysis of the ROI in a situation of make decision that involves Information Technology.

return on investment; IT management; VoIP technology