The voice of the agent is not smooth when I go for outbound calling. Is this the issue at the development level, or the issue with llm I'm using or the voice I'm using?

Try switching your TTS provider or adjusting the speech speed (if supported) to improve voice smoothness. For example, if you are using PlayHT, you can set the

speed

parameter in your voice configuration:

json
"voice": {
  "provider": "playht",
  "voiceId": "jennifer",
  "speed": 1.0
}

If your current provider does not support the

speed

field, consider testing with PlayHT or another provider to see if the smoothness improves. [See more in the speech configuration docs.](https://docs.vapi.ai/customization/speech-configuration) Source: - [Speech configuration](https://docs.vapi.ai/customization/speech-configuration)

Speed is good but the agent get stuck in between call, sometime there is error in their voice.

Could you please provide a call id?