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

### Answer The issue where the agent hangs up despite the user speaking could be due to several factors. Here are a few possibilities: 1. **Function Call Issues**: Sometimes the assistant may hang up if there's a problem with a function call. This can happen if the function doesn't return a response or there's an error when the function call is about to happen [(1)]() [(2)]() . 2. **Pipeline Errors**: There could be various pipeline errors that cause the call to end unexpectedly. These errors can include issues with the assistant, the LLM, the voice provider, etc [(3)]() [(4)]() . 3. **Silence Timeout**: If there are prolonged periods of silence, the assistant may interpret this as the end of the conversation and end the call. Ensure that the

silenceTimeoutSeconds

parameter is set appropriately to handle expected pauses [(5)]() . To troubleshoot, you can check the specific logs and error messages for the call ID you provided (21237d26-252f-47d0-a9a5-e1dd4048222f) using the 'Get Call' API [(3)]() . This will give you detailed information about why the call ended.

bash
curl --request GET \
--url https://api.vapi.ai/call/21237d26-252f-47d0-a9a5-e1dd4048222f \
--header 'Authorization: Bearer <token>'

, [(5)]() , [(2)]()