We can confirm this problem has been resolved, and all services have been restored.
Customer calls made to US destinations using new sub-API keys might have been rated as 'C' under STIR/SHAKEN call grading regulations for outbound PSTN calls during this incident.
The following services were impacted from [2025-05-28 04:00] UTC until [2025-06-09 10:05] UTC: Voice API SIP PSIP
Please let support@api.vonage.com know if you continue to experience problems with this.
Posted Jun 09, 2025 - 16:31 UTC
Monitoring
A fix has been implemented, and we are monitoring the results.
Posted Jun 09, 2025 - 11:06 UTC
Update
We are continuing to work on a fix for this issue.
Posted Jun 06, 2025 - 09:49 UTC
Update
We are continuing to work on a fix for this issue.
Posted Jun 05, 2025 - 09:13 UTC
Update
We are continuing to work on a fix for this issue.
Posted Jun 04, 2025 - 17:58 UTC
Update
We are continuing to work on a fix for this issue.
Posted Jun 04, 2025 - 17:56 UTC
Update
We are continuing to work on a fix for this issue.
Posted Jun 04, 2025 - 11:46 UTC
Identified
Our monitoring system has alerted us to a potential service issue with our Voice platform.
Customer calls made using new sub-API keys may be rated as 'C' under STIR/SHAKEN call grading regulations for outbound PSTN calls.
We aim to provide an update on our investigation within 1 hour.