This incident has been resolved.

Deepgram reported high rate of 500 errors when using their Aura-2 Voices, which may impact Vapi calls if using this provider. (e.g. ended reason call.in-progress.error-vapifault-deepgram-voice-failed)

Follow deepgram's incident report here: https://status.deepgram.com/incidents/sl3zxvhddf1w

Recommendations
1. Temporarily switch to another voice, like Vapi or Elevenlabs.
2. Configure a voice fallback. Your calls will still go to Deepgram first but if it fails, it will switch voice to another provider. We won't drop any calls but the user will hear another voice.