This was a partial outage which affected customers utilizing our Clearly Cloud USA Cloud PBX product. Customers may have intermittent registration and call issues on our Clearly Cloud USA Cloud PBX product related to an extreme CPU load change.
The root cause of this was due to internal API calls that were abnormally high. As a result of this issue, the engineering team has adjusted the rate limits on the affected APIs to better deal with the situation that occurred.
This helped bring our load down and back to normal levels, resolving the issues.