Outage in CallTower
US Webex Customers experiencing call quality degradation, or call failures
Resolved Minor
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Outage Details
Cisco has announced they are continuing to experience a network event similar to the one they had Yesterday, 7/29/2025. The issue may cause media quality degradation for some Webex Calling users and Webex Contact Center agents in the US region. Additionally, some provisioning tasks and emergency calls may fail, and some Cisco Calling Plan services may experience failures as well.
Components affected
CallTower Cisco VoiceLatest Updates ( sorted recent to last )
RESOLVED
27 days ago - at 07/29/2025 05:16PM
Cisco's Engineering team has completed mitigation efforts and Cisco reports all services are now fully operational
CallTower will be closing this master case and all associated cases. Within three business days, an Official Root Cause Analysis (RCA) or a Preliminary RCA will be available and provided to customers upon request.
INVESTIGATING
27 days ago - at 07/29/2025 04:09PM
Cisco has announced they are continuing to experience a network event similar to the one they had Yesterday, 7/29/2025. The issue may cause media quality degradation for some Webex Calling users and Webex Contact Center agents in the US region. Additionally, some provisioning tasks and emergency calls may fail, and some Cisco Calling Plan services may experience failures as well.
Latest CallTower outages
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Outbound Calls Failing for CT Cloud SIP Customers - 3 months ago
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