# Telnyx: Local calls to a Few European countries are failing with SIP 503 Service Unavailable

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-08-11 08:52 UTC · Resolved: 2026-08-11 15:05 UTC · Duration: 6.2 h
- Updates: 3 · Affected components: Europe
- [Vendor status page: https://status.telnyx.com/incidents/01KZR0B1Y8FK3KMWYKN2MK1ZFX](https://status.telnyx.com/incidents/01KZR0B1Y8FK3KMWYKN2MK1ZFX)
- [Company: Telnyx](https://rewindex.com/company/telnyx.md)

## Timeline of updates

- **investigating** 2026-08-11 08:52 UTC: We are currently investigating an increase in calls failing with SIP 503 Service Unavailable errors affecting local outbound call termination to European destinations. Customers may experience Local call failures when attempting to reach European destinations Sweden, Denmark etc. Our telephony team is actively working on a resolution.
- **monitoring** 2026-08-11 10:04 UTC: Our telephony team has implemented a fix and we are actively monitoring traffic.
- **resolved** 2026-08-11 15:05 UTC: This issue was mititaged as of Tue Aug 11 09:44:44 UTC 2026

## Rewindex changes for this incident

- 2026-08-11 08:52 UTC: [Major incident: Local calls to a Few European countries are failing with SIP 503 Service Unavailable](https://rewindex.com/change/if2271801aee6bc.md)


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Canonical: https://rewindex.com/company/telnyx/incidents/01KZR0B1Y8FK3KMWYKN2MK1ZFX · Markdown: https://rewindex.com/company/telnyx/incidents/01KZR0B1Y8FK3KMWYKN2MK1ZFX.md · JSON: https://rewindex.com/api/v1/companies/telnyx/incidents/01KZR0B1Y8FK3KMWYKN2MK1ZFX · Generated 2026-10-19T21:15:18.815Z