SIP call failures

Summary

SIP call failures

After our recent mitigation steps, our engineers have traced SIP call failure rate as it has returned to baseline. We will publish a complete root cause analysis shortly.

• Started

  Jul 31, 2026 · 3:08 AM

• Resolved

  Jul 31, 2026 · 5:29 AM

• Duration

  2h 20m

• Severity

  Major

• ◐

  Investigating

  Jul 31 · 3:08 AM ElevenLabs

  Starting at ~1:00 UTC, calls to a portion of phone numbers imported into the ElevenLabs Agent Platform are failing. We are currently working to isolate the root cause and restore full functionality.

• ◆

  Identified

  Jul 31 · 4:00 AM ElevenLabs

  We've identified a likely contributing factor related to infrastructure resource constraints affecting SIP call routing. We're currently validating a fix.

• ✓

  Resolved

  Jul 31 · 5:29 AM ElevenLabs

  The issue has been resolved. Call routing is now fully restored, and we're assessing follow-ups to improve proactive alerting and prevent recurrence.

• ◐

  Investigating

  Jul 31 · 6:18 AM ElevenLabs

  Following the earlier fix, we're seeing renewed inbound call routing failures for a portion of phone numbers. We're currently investigating.

• ◆

  Identified

  Jul 31 · 9:06 AM ElevenLabs

  Our team has identified a potential cause of the call outages and is currently validating a fix. We will share further updates as soon as we have more information.

• ◆

  Identified

  Jul 31 · 11:10 AM ElevenLabs

  Calls should be back to normal for the EU and India residencies. The US residency may still experience some downtime, but our team is working to resolve the issue. In the meantime, the immediate workaround is to remove the affected number and re-add it, if possible.

• ◆

  Identified

  Jul 31 · 1:01 PM ElevenLabs

  Our team is still actively working to restore all calls and phone numbers to their normal working state.

• ◆

  Identified

  Jul 31 · 1:26 PM ElevenLabs

  We have identified the root cause of the failed SIP calls and prepared a fix.

• ◆

  Identified

  Jul 31 · 6:02 PM ElevenLabs

  Our engineers are putting together a targeted fix to resolve the remaining SIP failures in the US region.

• ✓

  Resolved

  Jul 31 · 7:15 PM ElevenLabs

  After our recent mitigation steps, our engineers have traced SIP call failure rate as it has returned to baseline. We will publish a complete root cause analysis shortly.