Back to All Scenarios
PASSEDvendor / cisco_webex_calling_outage
Cisco Webex Calling Service Outage
Cisco Webex Calling cloud service experiences a regional outage affecting all cloud-connected phones and soft clients at the organization, with calls failing to connect and existing calls dropping.
Pattern
CISCO_EVENT
Severity
CRITICAL
Confidence
95%
Remediation
Remote Hands
Test Results
| Metric | Expected | Actual | Result |
|---|---|---|---|
| Pattern Recognition | CISCO_EVENT | CISCO_EVENT | |
| Severity Assessment | CRITICAL | CRITICAL | |
| Incident Correlation | Yes | 28 linked | |
| Cascade Escalation | Yes | Yes | |
| Remediation | — | Remote Hands — Corax contacts on-site support via call, email, or API |
Scenario Conditions
Cisco Webex Calling deployed for 800 users. Regional cloud outage in US-East. All Cisco MPP phones and Webex app calling non-functional. PSTN calling via Webex local gateway also affected. No on-prem fallback.
Injected Error Messages (3)
cisco Webex Calling regional outage — US-East cloud calling infrastructure not functioning, cisco Webex status page reporting 'major outage' for calling services, all SIP registrations from cisco MPP phones failing, Webex app calling returning 'service unavailable', cisco cloud calling API returning HTTP errors for all provisioning and call control operations
cisco MPP phone fleet registration failure — 800 cisco IP phones showing 'Registering...' status, all phones lost SIP registration to Webex Calling cloud, cisco phone displays showing 'Service Unavailable', users unable to make or receive calls on desk phones, cisco MPP phone syslog: 'Registration Failed: Webex edge not responding'
cisco Webex local gateway PSTN failover not functioning — local gateway unable to register trunk with Webex Calling cloud, cisco CUBE configuration requires Webex cloud registration for PSTN routing, all inbound PSTN calls to organization DID numbers going unanswered, cisco local gateway syslog: 'SIP Registration to Webex Calling failed — remote not reachable'
Neural Engine Root Cause Analysis
This is a confirmed Cisco Webex regional infrastructure outage in the US-East cloud calling platform, not a local monitoring issue. The Cisco status page is actively reporting a 'major outage' affecting their cloud calling infrastructure, causing complete service disruption including SIP registration failures, Webex app unavailability, and API errors. The recent healthy check (282ms, HTTP 200) indicates this is a genuine upstream service failure rather than a monitoring configuration problem.
Remediation Plan
1. Acknowledge this is an upstream Cisco Webex infrastructure outage beyond our control. 2. Monitor Cisco's status page (https://status.webex.com) for official updates and estimated resolution time. 3. Communicate the outage to affected users and stakeholders, referencing Cisco's official incident. 4. If business critical, evaluate failover to backup calling solutions or alternative communication channels. 5. Continue monitoring until Cisco reports resolution, then verify service restoration.
Tested: 2026-03-30Monitors: 3 | Incidents: 3Test ID: cmnck91al07niobqeus022vbn