The TTS API degradation problem has been resolved.
The TTS API and Verify API calls were impacted from 01-Mar-2019 11:57 UTC until 13:11 UTC.
Voice API and SIP have not been impacted.
All services have been restored.
Please let email@example.com
know if you continue to experience problems with this.
A post-mortem will be published in the next few days.