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

### Answer Experiencing an "unknown-error" during calls can be perplexing. This error is often not described in detail within the official Vapi documentation. However, discussions from the Discord community suggest that "unknown-error" could happen due to various reasons, including issues with third-party services like Deepgram or configuration problems [(1)]() [(2)]() [(3)]() . For instance, a user encountered "unknown-error" when their Deepgram API key expired, which wasn't immediately apparent because they expected a more specific error message for such a standard issue [(1)]() . Another scenario involved adding a new function that led to calls not being received, indicating that configuration changes or updates can sometimes result in unexpected behaviors [(2)]() . Additionally, there are instances where calls ended with "unknown-error" and no recording was available, suggesting potential issues with the call setup or execution [(3)]() . Given these insights, it may be beneficial to review any recent changes to your setup or configurations, especially if you're integrating with third-party services like Deepgram. Additionally, checking the validity and permissions of any API keys you're using could also help. For a precise diagnosis, however, examining the specific call logs and configurations related to the mentioned call IDs would be necessary, which might require direct support from Vapi's team. Remember, each case can be unique, so investigating

the specific circumstances surrounding your "unknown-error" occurrences is key to finding a resolution.

Got it. Tagging @User for additional help.