This case study details the implementation of Colt On Demand services by Air Internet Service Co., Ltd., an internet service provider. The document outlines the challenges faced by Airnet in managing connections to various cloud services, which included issues with delivery time, costs, and contract terms. To address these challenges, Airnet reconsidered its network design for its disaster recovery site. The case study explains how Colt On Demand's flexible contract periods and pay-as-you-use model provided a suitable solution for Airnet's needs. It highlights the significant cost savings and reduced delivery times achieved through the implementation of this service. Furthermore, the document discusses Airnet's future plans to utilize Colt On Demand for enhanced connectivity to public cloud services and to offer these benefits to its customers, thereby aiming to improve customer satisfaction and build a more robust network environment.