Call ID : f20d8a35-58a2-4b57-9d5d-6e2c4c37e693 So this call landed in the voicemail, and I have voicemail detection on How can I make the assistant hang up the call when it hit voicemail?

Hi there! 👋 I'm unable to provide specific information about the call ID you mentioned, but I can definitely help with configuring your Vapi assistant to hang up when it detects voicemail. Here are several approaches you can use to make your Vapi assistant hang up when it hits voicemail: ## 1. Configure Voicemail Detection Settings First, ensure your voicemail detection is properly configured:

json
"voicemailDetection": {
  "provider": "twilio",
  "voicemailDetectionTypes": [
    "machine_start",
    "machine_end_beep",
    "machine_end_silence",
    "unknown",
    "machine_end_other"
  ],
  "enabled": true,
  "machineDetectionTimeout": 5,
  "machineDetectionSpeechThreshold": 2400,
  "machineDetectionSpeechEndThreshold": 1000,
  "machineDetectionSilenceTimeout": 3000
}

According to the [documentation](https://docs.vapi.ai/phone-calling/voice-mail-detection), lowering the

machineDetectionTimeout

(e.g., to 5 seconds) will make the system decide faster if it's a voicemail, which can help with hanging up quickly. ## 2. Use the End Call Function You can configure the assistant to end the call immediately after voicemail is detected by setting:

json
"endCallAfterSpokenEnabled": true

This will end the call as soon as the voicemail message is spoken, according to information found in the [Vapi documentation](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1336548894896816222). ## 3. Combine Twilio and Vapi's Built-in Tool For improved accuracy in voicemail detection, you can enable both Twilio's detection and Vapi's built-in LLM-powered voicemail tool:

json
{
  ...yourExistingSettings,
  "model": {
    "tools": [{ "type": "voicemail" }]
  }
}

This approach uses an LLM to listen for typical voicemail greetings in the call's audio transcription, as mentioned in the [Vapi documentation](https://docs.vapi.ai/phone-calling/voice-mail-detection). ## 4. Programmatically End the Call

Thank you for reaching out to us. We've received your message and will get back to you as soon as possible.

Hey Simon, could you please update your voicemail config to the following values in this documentation as it requires other types as well?