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Outage in Webex by Cisco

Webex Calling: Admins will experience failures when attempting to add or delete devices via Webex Control Hub or APIs

Resolved Minor
August 10, 2026 - Started 2 days ago - Lasted about 6 hours

Incident Report

Summary AI Generated

Webex Calling administrators globally, including Webex for Government environments, were unable to add or delete calling devices via Webex Control Hub or APIs when using MAC address-based provisioning for approximately 6.3 hours. Devices added via activation code were unaffected throughout the incident. Engineering identified and remediated the issue, restoring full service by August 10, 2026 at 08:05 UTC.

Engineering is investigating an issue that is causing Webex Calling admins to experience failures when attempting to add or delete calling devices through Webex Control Hub or via APIs. This issue is impacting users globally across both Commercial and Webex for Government environments. At this time, the issue only affects devices that are added using a MAC address. Devices added using an activation code are not impacted and continue to function as expected. We are working towards service restoration and apologize for any inconvenience this may cause.

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Latest Updates ( sorted recent to last )
MONITORING 1 day ago - at 08/10/2026 08:05AM

Engineering has completed remediation activities and services are now restored.

We will continue to monitor to ensure service stability.

IDENTIFIED 2 days ago - at 08/10/2026 06:08AM

Engineering continues to work towards service restoration. We will monitor progress closely and provide the next update in one hour or sooner if significant progress occurs.

Thank you for your continued patience as we work to resolve this incident.

IDENTIFIED 2 days ago - at 08/10/2026 04:52AM

Engineering continues to work towards service restoration. Progress is ongoing as the team implements corrective actions to address the devices addition/deletion failures experienced by Webex Calling Administrators. We will provide the next update in an hour or sooner if new information becomes available.

Thank you for your continued patience as we address this service incident.

IDENTIFIED 2 days ago - at 08/10/2026 03:50AM

Engineering has identified the issue and is currently working towards service restoration. We will continue to monitor the progress closely and will provide the next update in one hour or sooner should significant progress occur.

Thank you for your continued patience as we address this service incident.

INVESTIGATING 2 days ago - at 08/10/2026 03:45AM

Engineering is investigating an issue that is causing Webex Calling admins to experience failures when attempting to add or delete calling devices through Webex Control Hub or via APIs. This issue is impacting users globally across both Commercial and Webex for Government environments.
At this time, the issue only affects devices that are added using a MAC address. Devices added using an activation code are not impacted and continue to function as expected.

We are working towards service restoration and apologize for any inconvenience this may cause.

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