# Zoom: Service Degradation Affecting Zoom Phone Outbound Calls in China Region

- Provider: [Zoom](https://outages.live/zoom.md)
- Type: Incident
- State: Resolved
- Worst impact: Degraded performance
- Started: 2026-09-16 04:00 UTC
- Resolved: 2026-09-16 04:35 UTC (lasted 36 min)
- Components: Calling (Inbound/Outbound), Zoom Phone - HONG KONG/CHINA - Calling (Inbound/Outbound)
- Official update: https://stspg.io/wcdfkn8d887l

## Updates from Zoom

### resolved, 2026-09-16 04:35 UTC

This incident has been resolved and the affected services have been restored.

### monitoring, 2026-09-16 04:29 UTC

The issue affecting Zoom Phone outbound calls has been successfully resolved. Our team will continue to monitor the situation closely and keep you informed of any further developments.

### identified, 2026-09-16 04:15 UTC

We have successfully identified the root cause affecting Zoom Phone outbound calls for users with phone numbers that have the +8621 prefix in China. Inbound calls not impacted. Our team is actively working on a resolution, and we will keep you informed with timely updates as progress is made. Thank you for your patience.

### investigating, 2026-09-16 04:00 UTC

We are currently investigating a service degradation affecting Zoom Phone outbound calls for users with phone numbers that have the +8621 prefix in China. Inbound calls not impacted. Our team is actively working to identify the impact and root cause. We will provide an update as soon as more information becomes available. We appreciate your patience as we work to resolve this issue.