I have a call

e33d2ea0-da56-4fed-ad50-6053f9101f45

that was marked as Voicemail and read out the voicemail message even though I can't find anything in the logs that indicates that a voicemail was detected. The call wasn't even voicemail like so I'm not sure why it was flagged as such.

Hi there! 👋 I'm unable to check the specific logs for your call ID

e33d2ea0-da56-4fed-ad50-6053f9101f45

, but I can definitely help explain why calls might be incorrectly flagged as voicemail in Vapi. There are several possible reasons why your call might have been incorrectly marked as voicemail: 1. **Configuration issues**: Incorrect settings for parameters like

machineDetectionSilenceTimeout

,

machineDetectionSpeechThreshold

, or

machineDetectionTimeout

can cause misclassification. For example, if the

machineDetectionSilenceTimeout

is too short, a brief silence might be misinterpreted as a voicemail prompt. According to [Vapi documentation](https://docs.vapi.ai/phone-calling/voice-mail-detection), these parameters significantly influence detection accuracy. 2. **Detection method conflicts**: Vapi supports both Twilio's built-in detection and Vapi's LLM-powered tool. If both are enabled but not properly configured, they might conflict and cause false positives. 3. **Network or telephony issues**: Network delays or unexpected behavior in the telephony network can sometimes cause calls to be misclassified, as mentioned in several [troubleshooting discussions](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1332133296347549797). 4. **Message type issues**: Using

request-start

message instead of

start-message

can sometimes cause a call to be incorrectly flagged as voicemail. To investigate this issue further, I recommend: 1. Check your voicemail detection configuration settings 2. Review the call logs in the Vapi dashboard (navigate to logs > calls) 3. Look for any webhook events related to voicemail detection 4. Check for any error messages or warnings in both Vapi and Twilio logs Would you like more specific information about any of these troubleshooting steps or configuration parameters? Sources: - [Vapi documentation](https://docs.vapi.ai/phone-calling/voice-mail-detection)

Message marked as helpful by @Maven ace! 🎉

hey @neelmehta checking if this is resolved for you