India VoIP Failures

Incident Report for Duo

Resolved

The issue causing VoIP authentication failures in India is resolved and VoIP authentication services are functioning as expected.
Posted Jul 31, 2025 - 19:50 EDT

Monitoring

We are now observing high rates of success of VoIP authentication in India. We will continue to monitor the authentications and post any updates if the situation changes or if the incident is considered fully resolved.
Posted Jul 31, 2025 - 17:49 EDT

Identified

We have identified the cause of the VoIP authentication failures in India and are working on a solution. In the meantime, a workaround has been applied and we are seeing increased success rates.

Please check back here or subscribe to updates for any changes.
Posted Jul 31, 2025 - 14:27 EDT

Investigating

We are currently investigating an issue causing phone call authentication failures in India on all of our deployments and are working to correct the issue as soon as possible.

Please check back here or subscribe to updates for any changes.
Posted Jul 31, 2025 - 08:04 EDT
This incident affected: DUO1 (Phone Call Delivery), DUO2 (Phone Call Delivery), DUO3 (Phone Call Delivery), DUO4 (Phone Call Delivery), DUO5 (Phone Call Delivery), DUO6 (Phone Call Delivery), DUO7 (Phone Call Delivery), DUO8 (Phone Call Delivery), DUO47 (Phone Call Delivery), DUO10 (Phone Call Delivery), DUO11 (Phone Call Delivery), DUO12 (Phone Call Delivery), DUO13 (Phone Call Delivery), DUO14 (Phone Call Delivery), DUO15 (Phone Call Delivery), DUO16 (Phone Call Delivery), DUO17 (Phone Call Delivery), DUO18 (Phone Call Delivery), DUO19 (Phone Call Delivery), DUO20 (Phone Call Delivery), DUO21 (Phone Call Delivery), DUO22 (Phone Call Delivery), DUO23 (Phone Call Delivery), DUO24 (Phone Call Delivery), DUO25 (Phone Call Delivery), DUO26 (Phone Call Delivery), DUO27 (Phone Call Delivery), DUO28 (Phone Call Delivery), DUO29 (Phone Call Delivery), DUO30 (Phone Call Delivery), DUO31 (Phone Call Delivery), DUO32 (Phone Call Delivery), DUO33 (Phone Call Delivery), DUO34 (Phone Call Delivery), DUO36 (Phone Call Delivery), DUO37 (Phone Call Delivery), DUO38 (Phone Call Delivery), DUO39 (Phone Call Delivery), DUO40 (Phone Call Delivery), DUO41 (Phone Call Delivery), DUO42 (Phone Call Delivery), DUO43 (Phone Call Delivery), DUO44 (Phone Call Delivery), DUO45 (Phone Call Delivery), DUO46 (Phone Call Delivery), DUO48 (Phone Call Delivery), DUO9 (Phone Call Delivery), DUO49 (Phone Call Delivery), DUO50 (Phone Call Delivery), DUO51 (Phone Call Delivery), DUO52 (Phone Call Delivery), DUO53 (Phone Call Delivery), DUO54 (Phone Call Delivery), DUO55 (Phone Call Delivery), DUO56 (Phone Call Delivery), DUO57 (Phone Call Delivery), DUO58 (Phone Call Delivery), DUO59 (Phone Call Delivery), DUO60 (Phone Call Delivery), DUO62 (Phone Call Delivery), DUO63 (Phone Call Delivery), DUO64 (Phone Call Delivery), DUO65 (Phone Call Delivery), DUO66 (Phone Call Delivery), DUO67 (Phone Call Delivery), DUO68 (Phone Call Delivery), DUO69 (Phone Call Delivery), DUO70 (Phone Call Delivery), DUO71 (Phone Call Delivery), DUO72 (Phone Call Delivery), DUO73 (Phone Call Delivery), DUO74 (Phone Call Delivery), DUO75 (Phone Call Delivery), DUO76 (Phone Call Delivery), DUO77 (Phone Call Delivery), DUO78 (Phone Call Delivery), DUO79 (Phone Call Delivery), DUO80 (Phone Call Delivery), DUO81 (Phone Call Delivery), and DUO35 (Phone Call Delivery).