### Answer
The issues you're experiencing with pauses, repeats, and volume dropping might be related to specific problems in the call or system configurations. However, I couldn't find a direct match for these call identifiers in the provided documentation.
For potential solutions, consider checking settings related to silence timeout, response delays, or any network-related configurations that might contribute to such behaviors. Adjusting these settings might resolve the unexpected behaviors you're observing. If the issue persists, it could be beneficial to review the system logs or any error messages that could provide more insight into what might be causing these disruptions.
If you have access to the Vapi dashboard or relevant admin settings, reviewing configuration details or seeking insights from available logs could provide further clues. Unfortunately, without specific logs or error entries related to these call IDs, providing a more precise solution is challenging.