Outage in Duo Security
GB VoIP Failures
Resolved Major
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Outage Details
We are currently investigating an issue caused by our UK telephony providers regarding VoIP failures with Duo on DUO70 and are working to correct the issue as soon as possible.
Please check back here or subscribe to updates for any changes.
Components affected
Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call Delivery Duo Security Phone Call DeliveryLatest Updates ( sorted recent to last )
RESOLVED
1 day ago - at 07/25/2025 12:43AM
The issue causing VoIP authentication failures in Great Britain is now resolved.
MONITORING
1 day ago - at 07/24/2025 11:02PM
The issue causing VoIP authentication failures in Great Britain appear to be resolved. We are continuing to monitor the situation closely and will post any updates when the incident is considered fully resolved.
IDENTIFIED
1 day ago - at 07/24/2025 05:27PM
We're continuing to partner with our telephony providers in the region as they work to restore service.
Please use alternate authentication methods such as Duo Push, Duo Mobile Passcodes, Hardware Token etc. to login to your Duo-protected integrations until the issue has been resolved.
MONITORING
1 day ago - at 07/24/2025 03:04PM
We are actively monitoring the VoIP phone call authentication issue affecting Great Britain.
IDENTIFIED
1 day ago - at 07/24/2025 02:25PM
We have identified the cause of the VoIP authentication failures in Great Britain and our telephony providers in the region are actively working to restore service.
While we are monitoring this, please use alternate authentication methods such as Duo Push, Duo Mobile Passcodes, Hardware Token etc. to login to your Duo-protected integrations.
INVESTIGATING
1 day ago - at 07/24/2025 01:55PM
We are currently investigating an issue caused by our UK telephony providers regarding VoIP failures with Duo on DUO70 and are working to correct the issue as soon as possible.
Please check back here or subscribe to updates for any changes.
INVESTIGATING
1 day ago - at 07/24/2025 01:44PM
We are currently investigating an issue caused by our UK telephony providers regarding VoIP failures with Duo on DUO70 and are working to correct the issue as soon as possible.
Please check back here or subscribe to updates for any changes.
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