# India VoIP Failures

- Provider: [Duo Security](https://down.guide/duo)
- Level: confirmed
- Impact: Degraded
- lasted 11h 47m
- started 2025-07-31 12:04 UTC
- Phone Call Delivery, Phone Call Delivery, Phone Call Delivery +76
- in
- id: DWN-56b2eeabcf
- Official page: https://stspg.io/spsw2crdw56x

## Updates from Duo Security
### 2025-07-31 12:04 UTC: 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.

### 2025-07-31 18:27 UTC: 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.

### 2025-07-31 21:49 UTC: 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.

### 2025-07-31 23:50 UTC: resolved
The issue causing VoIP authentication failures in India is resolved and VoIP authentication services are functioning as expected.

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