I am doing some testing with outbound calls, and found that sometimes when the agent says their first message, it receives it back as an echo thinking it is voicemail. Is there a way to stop the echo from going to voicemail?

To prevent your agent's first message from echoing back and triggering voicemail detection, adjust your voicemail detection settings with these parameters:

json
"voicemailDetection": {
  "provider": "twilio",
  "enabled": true,
  "machineDetectionTimeout": 30,
  "machineDetectionSpeechThreshold": 2400,
  "machineDetectionSilenceTimeout": 6000
}

Try increasing the

machineDetectionSilenceTimeout

value (default is 5000ms) to give the system more time to distinguish between echo and actual voicemail silence. Sources: - [Voicemail Detection Documentation](https://docs.vapi.ai/phone-calling/voice-mail-detection) - [Discord Discussion on Echo Issues](https://discord.com/channels/1211482211119796234/1336548894896816222)

Adjust the voicemail detection settings in the dashboard by configuring detection delays, retry intervals, and maximum wait times to optimize accuracy.