# Retell AI: Calls failing to start and concurrency stuck

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-02-10 22:12 UTC · Resolved: 2026-02-10 22:18 UTC · Duration: 6 min
- Updates: 2 · Affected components: End to End Calling - Phone Call, Phone Call
- [Vendor status page: https://stspg.io/0675g6hmvq57](https://stspg.io/0675g6hmvq57)
- [Company: Retell AI](https://rewindex.com/company/retell-ai.md)

## Timeline of updates

- **identified** 2026-02-10 22:12 UTC: There were call initialization issues between 1:35pm and 1:43pm PST. Calls are back online now, but concurrency for some users may be stuck. We are working on a fix.
- **resolved** 2026-02-10 22:18 UTC: Calls and concurrency should be back to normal.

## Rewindex changes for this incident

- 2026-02-10 22:12 UTC: [Major incident: Calls failing to start and concurrency stuck](https://rewindex.com/change/i2e4d952325e30d.md)


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Canonical: https://rewindex.com/company/retell-ai/incidents/p04ts1f3p3tq · Markdown: https://rewindex.com/company/retell-ai/incidents/p04ts1f3p3tq.md · JSON: https://rewindex.com/api/v1/companies/retell-ai/incidents/p04ts1f3p3tq · Generated 2026-10-20T00:14:29.833Z