# Retell AI: Custom LLM calls failing to start

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-03-16 04:39 UTC · Resolved: 2026-03-16 04:54 UTC · Duration: 15 min
- Updates: 2 · Affected components: End to End Calling - Phone Call, Phone Call, End to End Calling - Web Call, Web Call
- [Vendor status page: https://stspg.io/jl44188dybqv](https://stspg.io/jl44188dybqv)
- [Company: Retell AI](https://rewindex.com/company/retell-ai.md)

## Timeline of updates

- **identified** 2026-03-16 04:39 UTC: 19:38 PST: custom LLM calls started failing to start due to a bad release. Other types of calls are not impacted. 21:35 PST: a fix is being rolled out, we are keep monitoring the issue.
- **resolved** 2026-03-16 04:54 UTC: This incident has been resolved.


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Canonical: https://rewindex.com/company/retell-ai/incidents/tb28yh9d464t · Markdown: https://rewindex.com/company/retell-ai/incidents/tb28yh9d464t.md · JSON: https://rewindex.com/api/v1/companies/retell-ai/incidents/tb28yh9d464t · Generated 2026-10-20T00:06:46.387Z