# Increased rate of call failures

- Provider: [Vapi](https://down.guide/vapi)
- Level: confirmed
- Impact: Degraded
- lasted 23h 4m
- started 2026-08-19 18:16 UTC
- us
- id: DWN-51195f5135
- Official page: https://status.vapi.ai/incident/1021689

## Updates from Vapi
### 2026-08-19 18:16 UTC: update
We're seeing an increased rate of call failures and the team is actively investigating

### 2026-08-19 18:36 UTC: update
We are confirming that calls are not connecting in the US. Our team is still investigating. Next update in 30 min or sooner.

### 2026-08-19 19:01 UTC: update
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.

### 2026-08-19 19:26 UTC: update
We have rolled out a mitigation measure and are seeing improvements in call success rate.

### 2026-08-19 19:55 UTC: update
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.

### 2026-08-19 20:02 UTC: update
We are seeing recovery on all affected services and have moved to monitoring status.

### 2026-08-19 20:19 UTC: update
The incident is resolved.

### 2026-08-20 17:20 UTC: resolved
Incident Report available at https://drive.google.com/file/d/1ORxSZb8NYgVlmPoqnUEdTmlIua3NSl\_k/view

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