Outage in Webex by Cisco
Webex Calling: Some Devices are not visible in Collaboration Control Hub
Resolved Minor
September 02, 2026 - Started 19 days ago
- Lasted about 24 hours
Incident Report
Summary AI Generated
A bug in Webex Collaboration Control Hub prevented administrators from viewing or managing certain ATA, VG, DECT, and phone devices for approximately 24 hours, though calling services and device registrations remained fully operational throughout. Engineering identified and applied mitigation actions, with full visibility expected to restore once the standard cache refresh cycle completes.
Engineering has identified an issue in Collaboration Control Hub affecting the ability to view or manage some ATA, VG, DECT, and phone devices. Calling services and device registrations remain operational, and the impact is currently limited to device visibility and management in Control Hub.
Engineering has implemented mitigation actions in the impacted environment and is monitoring recovery. Some affected devices may continue to appear unavailable in Control Hub until the normal cache refresh cycle completes, which may take up to 24 hours.
Components affected
Webex by Cisco Webex Control Hub Webex by Cisco Device Management Webex by Cisco Webex Calling Webex by Cisco EndpointsTrusted by 1,000+ teams
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MONITORING
19 days ago - at 09/02/2026 03:23PM
Engineering has implemented mitigation actions and is monitoring recovery for the issue affecting visibility and management of some ATA, VG, DECT, and phone devices in Collaboration Control Hub. Calling services and device registrations remain operational.
Some affected devices may continue to appear unavailable in Control Hub until the normal cache refresh cycle completes, which may take up to 24 hours.
IDENTIFIED
19 days ago - at 09/02/2026 03:19PM
Engineering has identified an issue in Collaboration Control Hub affecting the ability to view or manage some ATA, VG, DECT, and phone devices. Calling services and device registrations remain operational, and the impact is currently limited to device visibility and management in Control Hub.
Engineering has implemented mitigation actions in the impacted environment and is monitoring recovery. Some affected devices may continue to appear unavailable in Control Hub until the normal cache refresh cycle completes, which may take up to 24 hours.
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