it is spelling out names instead of pronouncing names, what is a possible fix ?

Currently, custom pronunciation dictionaries are only supported for ElevenLabs voices—not for Sonic 3 Cartesia. If you need precise name pronunciation, consider switching your assistant's voice to an ElevenLabs model and then use a pronunciation dictionary as shown below:

json
{
  "voice": {
    "model": "eleven_turbo_v2_5",
    "voiceId": "your-voice-id",
    "provider": "11labs",
    "pronunciationDictionaryLocators": [
      {
        "pronunciationDictionaryId": "your-elevenlabs-dict-id",
        "versionId": "your-elevenlabs-version-id"
      }
    ]
  }
}

If you must use Cartesia, there is currently no documented fix for this issue. For more details, see the [Vapi pronunciation dictionary documentation](https://docs.vapi.ai/assistants/pronunciation-dictionaries). Source: - [Pronunciation dictionaries | Vapi Documentation](https://docs.vapi.ai/assistants/pronunciation-dictionaries)

1: Make sure that your settings match the language of the conversation. 2: Try changing voice provider to something else.

Hey, can you provide us with a callId in which this happened so we can debug on our end? There might be an issue in the language setting, the first message, or the system prompt.