# India VoIP Failures

- Provider: [Duo Security](https://down.guide/duo)
- Level: confirmed
- Impact: Degraded
- lasted 4h 2m
- started 2025-08-18 11:25 UTC
- Phone Call Delivery, Phone Call Delivery, Phone Call Delivery +76
- in
- id: DWN-a4d6237391
- Official page: https://stspg.io/h6z45mpt5w92

## Updates from Duo Security
### 2025-08-18 11:25 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.

### 2025-08-18 15:27 UTC: resolved
Duo has confirmed that the phone call authentication failures affecting all deployments in India have been fully resolved.

---
down.guide reads providers' official status pages every minute and adds its own evidence, always labeled. Free, no account. Agents: MCP at https://down.guide/mcp, REST at https://down.guide/api/v1, feeds at https://down.guide/feed. Built by Sazabi (https://sazabi.com/?utm_source=down-guide&utm_medium=markdown).