----------------------------- **While I generate an answer, here are some sources that might be helpful**: * [Outbound Sales Example]() * [Create Phone Call]() * [Inbound Support Example]() * [Get Call]() -----------------------------

### Answer I'm sorry, but without access to real-time data or the ability to directly investigate specific call IDs like "0e39be6e-dbed-4c32-81c5-b188914f4649", I'm unable to provide specific insights or resolutions regarding the function call issue you're encountering or the absence of logs in your call logs. For issues with function calls not working as expected, it's important to ensure that the server URL is correctly configured to handle function calls, as outlined in the documentation related to setting up your server URL for function calling [(1)]() . Also, ensure that your function definitions within the assistant configuration are correctly set up [(2)]() . If you're experiencing an "unknown-error" or missing logs, it could be related to various issues ranging from configuration errors, network issues, or issues with third-party services like transcriber or text-to-speech providers. Documented cases of "unknown-error" often require looking into specific call details or system logs for a deeper investigation [(3)]() [(4)]() [(5)]() . Given the limitations, I suggest reviewing the configuration steps for function calls and ensuring all third-party service credentials are valid and have not expired. For missing call logs, it might be helpful to check if the issue persists across different calls or scenarios. For more detailed analysis or if the issue persists, it might be helpful to reach out to others in the community on platforms where Vapi users share insights and solutions, keeping in mind the sensitivity and privacy of your project details.

Got it. Tagging @User for additional help.