Abstract: The installation wizard tool comprises a singular tool that guides the service technician in an ordered manner through the entire installation of an integrated voice-data telecommunications system while also integrating the data obtained from auto-discovery, diagnostics, and customization activities, which tasks are all performed with a single tool, via a common service technician interface. The installation wizard tool is capable of enabling the service technician to complete the installation of an integrated voice-data telecommunications system to the point of functional station-to-station and/or station-to-trunk calling. The service technician only is required to input data that the installation wizard tool cannot discover on its own, or that the service technician desires to change from the default settings. These changes can be implemented without invoking other applications.