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

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2026-08-11 08:52 UTC · Detected: 2026-10-19 17:33 UTC
- [Source: https://status.telnyx.com/incidents/01KZR0B1Y8FK3KMWYKN2MK1ZFX](https://status.telnyx.com/incidents/01KZR0B1Y8FK3KMWYKN2MK1ZFX)
- [Company: Telnyx](https://rewindex.com/company/telnyx.md)
- Versions: before (none: first archived) → after incident\_version:705/01KZR0B1Y8FK3KMWYKN2MK1ZFX@257a38930eb3
- Change 1 of 1 for this incident

Incident page (full timeline): [Local calls to a Few European countries are failing with SIP 503 Service Unavailable](https://rewindex.com/company/telnyx/incidents/01KZR0B1Y8FK3KMWYKN2MK1ZFX.md)
## What changed

**1. Added: Title**

```diff
+ Local calls to a Few European countries are failing with SIP 503 Service Unavailable
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-08-11 08:52 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-08-11 15:05 UTC
```

**6. Added: Update** (investigating) · 2026-08-11 08:52 UTC

```diff
+ 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.
```

**7. Added: Update** (monitoring) · 2026-08-11 10:04 UTC

```diff
+ Our telephony team has implemented a fix and we are actively monitoring traffic.
```

**8. Added: Update** (resolved) · 2026-08-11 15:05 UTC

```diff
+ This issue was mititaged as of Tue Aug 11 09:44:44 UTC 2026
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-08-11 08:52 UTC | Major incident: Local calls to a Few European countries are failing with SIP 503 Service Unavailable (this change) | major |

All Telnyx changes: [timeline](https://rewindex.com/company/telnyx/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


---
Canonical: https://rewindex.com/change/if2271801aee6bc · Markdown: https://rewindex.com/change/if2271801aee6bc.md · JSON: https://rewindex.com/api/v1/changes/if2271801aee6bc · Generated 2026-10-19T21:56:51.109Z