ChangesVapiIncreased rate of call failures
Vapi: Critical incident: Increased rate of call failures
Major incidentcritical (vendor)Changed Detected
Summary
Summary pending. The diff below shows exactly what changed.
Incident page: the full timeline of updates
What changed
Struck in red is what Vapi removed; blue is what they added. Muted text is unchanged context.
Before: not present
After: Increased rate of call failures
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After: critical
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After: resolved
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After: 2026-08-19 18:16 UTC
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After: 2026-08-20 17:20 UTC
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After: We're seeing an increased rate of call failures and the team is actively investigating
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After: We are confirming that calls are not connecting in the US. Our team is still investigating. Next update in 30 min or sooner.
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After: Calls are still failing to connect. Our team has a working hypothesis and we will post as soon as we can confirm the root cause. Next update will be in 30 min or earlier.
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After: We have rolled out a mitigation measure and are seeing improvements in call success rate.
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After: Some customers are reporting concurrency limits issues. We are resetting all limits to zero for all subscriptions. This change will propagate over the next few minutes.
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After: We are seeing recovery on all affected services and have moved to monitoring status.
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After: The incident is resolved.
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After: Incident Report available at https://drive.google.com/file/d/1ORxSZb8NYgVlmPoqnUEdTmlIua3NSl_k/view
First version of this incident archived by Rewindex.
History of this incident
Wednesday, August 19
1 incident change
- CriticalCritical incident
Increased rate of call failuresthis change