# Sinch: Service Degradation – Calling – AP-Southeast-1

- Impact (vendor’s label): critical
- Status: resolved
- Started: 2026-09-22 05:40 UTC · Resolved: 2026-09-22 08:36 UTC · Duration: 2.9 h
- Updates: 4 · Affected components: Phone Calling (PSTN), Voice - Phone Calling (PSTN), SIP Trunk, Voice - SIP Trunk, Video Calling, Voice - Video Calling, Data Calling, Voice - Data Calling
- [Vendor status page: https://stspg.io/cbj5vjc9868r](https://stspg.io/cbj5vjc9868r)
- [Company: Sinch](https://rewindex.com/company/sinch.md)

## Timeline of updates

- **investigating** 2026-09-22 05:40 UTC: We want to inform you that we are currently experiencing a performance degradation impacting our Calling services in the AP-Southeast-1 region. Incident Start Time: 2026-09-22 04:50 UTC Impact: Customers may experience delayed or failed attempts via In-app Calling / PSTN Calling/ Video Calling and SIP Trunk . We sincerely apologize for any inconvenience this may cause and appreciate your understanding while we work to resolve the issue. For further information or assistance, please contact us at support@sinch.com.
- **investigating** 2026-09-22 07:09 UTC: We are continuing to investigate this issue.
- **monitoring** 2026-09-22 08:15 UTC: A fix has been implemented and we are monitoring the results.
- **resolved** 2026-09-22 08:36 UTC: This incident has been resolved. Incident Start Time: 2026-09-22 04:50 UTC Incident End Time: 2026-09-22 07:23 UTC

## Rewindex changes for this incident

- 2026-09-22 05:40 UTC: [Critical incident: Service Degradation – Calling – AP-Southeast-1](https://rewindex.com/change/ic193989a7c37fe.md)


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Canonical: https://rewindex.com/company/sinch/incidents/cydfsvr8xkc0 · Markdown: https://rewindex.com/company/sinch/incidents/cydfsvr8xkc0.md · JSON: https://rewindex.com/api/v1/companies/sinch/incidents/cydfsvr8xkc0 · Generated 2026-10-19T21:08:43.338Z