SIP US experienced a minor incident on February 25, 2026 affecting Fax Service, lasting 16h 55m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Feb 25, 2026, 10:34 PM UTC
We are aware that multiple customers are reporting issues with incoming faxes failing to be delivered. We are actively investigating the matter and will provide an update as more information becomes available.
- identified Feb 25, 2026, 11:05 PM UTC
We have identified that inbound fax transmissions are successfully reaching the fax service; however, the Fax ATAs are not processing the fax transmissions correctly. We are actively investigating the matter and will provide an update as more information becomes available.
- monitoring Feb 26, 2026, 01:23 AM UTC
Faxing service partners have identified a root cause and reverted changes that had contributed to delivery issues. Faxing services have resumed and are being monitored.
- resolved Feb 26, 2026, 03:30 PM UTC
Service has been fully restored, and we have validated that inbound faxes and notifications are once again being handled and delivered correctly.