@melvin
I'm sorry to hear that you're experiencing issues with the voicemail detection feature. It seems like the calls are ending for reasons that might not align with your expectations. To better assist you, I will need to review the specific details of the call logs associated with the call IDs you've provided.
In the meantime, could you please confirm if the voicemail detection settings are configured as per your requirements? The settings you've provided should detect the end of a voicemail by either a beep or a silence, with specific timeouts and thresholds for speech and silence.
If you've already confirmed the settings and the issue persists, we may need to investigate further into the call logs for the provided call IDs. If you require immediate assistance with this, please ask support for more info on this, as they will have the necessary tools to dive deeper into the issue.