Occasionally, the agent goes completely silent and does not respond even when we continue speaking. So far, this has happened twice: In one case, we had to disconnect the call after waiting more than 30 seconds without any response. In another case, the agent started responding again after about 20–30 seconds. Could any of you please help us understand the cause and guide us on how to fully mitigate or resolve the issue?

To diagnose the agent's silence, review your call logs in the Vapi dashboard: 1. Go to

Observe > Call Logs

in your [dashboard](https://dashboard.vapi.ai/). 2. Check the transcript and error messages for the affected calls to see if there were model delays or tool failures. This will help you pinpoint where the silence occurred and guide your next troubleshooting step.

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# Example: Reviewing Call Logs
Navigate: Observe > Call Logs > [Select Call] > Review transcript & errors

For more details, see the [Debugging Guide](https://docs.vapi.ai/debugging). Source: - [Debugging voice agents](https://docs.vapi.ai/debugging)

This is usually caused by latency/timeouts between the STT → LLM → TTS pipeline, tool calls hanging, or websocket/realtime connection instability. I’d recommend checking logs for long tool execution times, token/context overload, silence/VAD settings, and provider timeout limits. I’ve helped troubleshoot similar voice agent issues before and can help you identify the root cause and stabilize the flow so the agent responds consistently without those silent gaps. @AJ

Hi, Sorry for the delay. Could you please share the most recent Call ID where you experienced this issue? This will help us investigate further.