Genesys Cloud provides a call simulator tool for testing Global Media Fabric configurations to verify that the system correctly utilizes selected media regions. After configuring a site and trunk for Global Media Fabric, administrators can access the simulation feature by navigating to Menu > Digital and Telephony > Telephony > Sites, selecting the target site, and accessing the Simulate Call tab. Users enter a phone number in e164 format and initiate the simulation to validate configuration settings. Genesys recommends testing multiple scenarios to identify the optimal configuration that balances audio latency and call setup times according to specific business requirements. Test results may vary based on carrier location, agent location, and internet connection quality. This testing capability ensures proper media region routing before deploying Global Media Fabric in production environments.