----------------------------- **While I generate an answer, here are some sources that might be helpful**: * [Create Phone Call]() * [Call Ended Reason]() * [Get Call]() * [Create Assistant]() -----------------------------

### Answer It sounds like you are experiencing an issue where the call is established, but there is no audio from the bot, and it ends with the reason "customer did not answer." This could be due to several factors related to the setup of your voice AI assistant or the call configuration. 1. **Voicemail Detection Misconfiguration**: Sometimes, if the voicemail detection is enabled and misconfigured, it might incorrectly classify a live conversation as a voicemail, which could lead to the call ending prematurely. Verify if

voicemailDetectionEnabled

is set to true and consider setting it to false to see if it resolves the issue [(1)]() . 2. **Check Assistant Configuration**: Ensure that the assistant's configuration, especially regarding speech and audio settings, is correct. This includes checking if the

firstMessage

is set correctly and that the voice settings like

voiceId

and

speed

are properly configured to ensure that the assistant speaks as expected [(2)]() . 3. **Audio Stream Configuration**: Ensure that the audio streaming is set up correctly. This involves configurations related to the WebRTC or other streaming protocols you might be using, which are crucial for transmitting audio correctly. 4. **Call Ended Reasons**: If the call frequently ends with "customer did not answer," it might suggest an issue with how the call setup or answer detection is configured. Investigating the detailed logs might provide insights into why this ended reason is triggered [(3)]() . If these checks don't resolve the issue, it could be beneficial to look at the detailed logs or debug the API calls to see exactly what's happening during the call setup and execution. This can help identify if the

issue lies with network settings, API usage, or configuration on Vapi's side.