Celeste experienced a major incident on June 18, 2026 affecting Telephony services, lasting 3d 17h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Jun 18, 2026, 01:26 PM UTC
We are currently investigating VoIP quality issues affecting some customers on June 18, 2026. The issue appears to be related to a network problem. Impacted users may experience robotic voice or loss of audio during calls. The issue started at 08:00 CEST and has been ongoing since 11:00 CEST. We apologize for the inconvenience and will provide updates as soon as possible.
- identified Jun 18, 2026, 03:16 PM UTC
A configuration change was applied at 16:30 CEST to mitigate the impact on affected customers. We are continuing to monitor the situation and working towards a permanent resolution. We apologize for the inconvenience and will provide further updates as soon as possible.
- identified Jun 22, 2026, 06:27 AM UTC
We are continuing to work on a fix for this issue.
- resolved Jun 22, 2026, 06:28 AM UTC
Long Term Monitoring