There were 7 Retell AI outages since February 10, 2026 totaling 3h 46m of downtime. Each is summarised below — incident details, duration, and resolution information.
The KB retrieval and QA experienced an issue due to an unintended code change. The issue has been resolved, and we are actively monitoring the systems to ensure continued stability.
This incident has been resolved.
Starting ~13:32 UTC (8:32 AM PT), batch calls were not being sent due to an internal issue that was triggered in our system. We've identified the root cause and are actively working on a fix.
A fix is being deployed and we are monitoring to ensure recovery. As a side effect, batch calls that were missed are being marked as "sent".
This incident has been resolved.
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.
This incident has been resolved.
Between 1:25–2:08pm PT, a provider-side rate-limit configuration issue caused some TTS requests to be silently dropped. This issue has been resolved, and we are adding detection to make sure a fallback will be triggered if this happens again.
There was an accidental change in the logic of account cleanup that led to the deletion of small portion of community voice resources, which caused those agents with the voice having issues. We have fixed the logic, and have been running a backfill to detect and add back those resources.
We are currently experiencing service degradation affecting SIP trunking through our upstream provider, Telnyx. This may result in call connection issues. https://status.telnyx.com/
This incident has been resolved.
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.
Calls and concurrency should be back to normal.
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