Webex by Cisco Outage History

Cisco Calling Plan customers experienced failures when attempting to create port orders through the Webex Control Hub, with administrators encountering errors on the PSTN Orders page. The issue affected administrative functions only, while calling functionality remained operational throughout the incident. Engineering identified and resolved the problem after 2.1 hours, restoring full service to the Control Hub.

Webex Meetings experienced an 18.2-hour service disruption where users on H323 endpoints and SIP devices encountered call join failures, along with inbound PSTN call failures and Call-Me feature issues. The incident affected users' ability to join meetings through traditional phone and video calling methods, though VoIP (computer audio) remained available as a workaround. Engineering identified the root cause and completed remediation activities to restore all affected services.

Webex Contact Center agents in the US, Canada, ANZ, and EU regions experienced delays and failures when attempting to login, logout, or update their agent state in the Desktop application for over 50 hours. The issue was caused by a DNS configuration problem that disrupted Contact Center services and affected CRM connector functionality. Engineering resolved the configuration issue, though full DNS propagation across the internet took up to 48 hours to complete, with services gradually stabilizing as DNS caches updated.