Previous incidents
Call Webhooks not Firing
Resolved Apr 7, 2026 at 3:44am UTC
This is resolved and webhooks are firing normally again.
2 previous updates
Ultravox v0.6 degraded
Resolved Mar 4, 2026 at 6:33am UTC
From 10:02pm PST to 10:15pm PST some calls targeting Ultravox v0.6 were rejected due to insufficient capacity or experienced high latency.
Direct outbound telephony calls fail to connect
Resolved Feb 14, 2026 at 6:38pm UTC
The issue has been resolved.
A deployment change broke signature verification from Twilio and Plivo, causing callbacks from those services to fail with HTTP 403. The problem has been fixed and we have added additional alerting to detect this class of issue sooner. We're very sorry for the downtime. If you were affected and have additional questions, please contact hello@ultravox.ai.
1 previous update
Intermittent Elevated Latency
Resolved Feb 2, 2026 at 10:36pm UTC
We've mitigated the secondary impacts and are deployed in an additional data center while we root cause the latency spikes.
1 previous update