Troubleshoot Webex Contact Center voice and digital channel issues, including PSTN connectivity (Webex Calling or Cloud Connected PSTN), dial plans, telephony and Webex Calling/CUCM integrations, agent desktop issues, and Analyzer reporting discrepancies. Support Webex Contact Center tenants, including Flow Designer flows, entry points, queues, routing strategies, teams, agent profiles, desktop (Agent/Supervisor) configuration, and administration through Control Hub and the Management Portal.