Resolved after 4 hours 23 minutes, affecting SIP/PSTN, on February 18, 2026.
The fix from our upstream carrier partner has been applied, and service has been restored for SIP/PSTN dial-in (inbound) calling. We are seeing successful inbound call connections again, and our internal testing confirms recovery. We are continuing to monitor closely to ensure stability and full recovery.
Affected components
Update timeline
- investigating Feb 18, 2026, 11:31 AM UTC
We are currently investigating an issue affecting SIP / PSTN inbound calls. Customers may encounter 480 “Temporarily Unavailable” errors when attempting to receive calls. Our engineering team is actively working to identify the root cause and restore service.
- identified Feb 18, 2026, 02:18 PM UTC
Our upstream carrier partner has identified the root cause of the issue impacting SIP/PSTN dial-in (inbound) calling and has implemented a fix. Service is beginning to recover, though some degradation may still be present while the fix fully propagates. We are actively monitoring and working to confirm full restoration of inbound calling. Outbound (dial-out) calling remains unaffected.
- monitoring Feb 18, 2026, 02:19 PM UTC
The fix from our upstream carrier partner has been applied, and service has been restored for SIP/PSTN dial-in (inbound) calling. We are seeing successful inbound call connections again, and our internal testing confirms recovery. We are continuing to monitor closely to ensure stability and full recovery.
- resolved Feb 18, 2026, 03:55 PM UTC
This incident has been resolved.
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