Senterlink is a comprehensive and automated call-out and maintenance scheduling management system. It is mobile-technology based and can be accessed on iPhone and Android mobile platforms. In addition to call-outs and scheduling it provides Fatigue Tracking and Employee Time-Off modules which contribute to an increase in employee efficiency and productivity. Control Tower in the Palm of Your Hand. Refineries in the petroleum industry have been using the senterlink callout system for over six years.