Troubleshooting AI Agent Behavior with Voicemail and IVR Systems

Hi guys! I'm having an issue where my call prompt explicitly instructs the AI agent to not speak or interact when the call is answered by a voicemail system or an automated phone menu (IVR). The prompt also says not to speak internal logic aloud, like “I’m ending the call now.” However, despite this, the bot still says things like “I recognize this is a voicemail system” or “I’m ending the call,” and sometimes even tries to interact with the menu options. In some cases, it doesn’t hang up right away — the call only ends when the other party disconnects. My question is: Does Lindy have any fallback behavior or default handling for voicemail or IVR systems that could be overriding my prompt instructions? If so, is there a way to disable or override this behavior completely so the bot just ends the call silently as instructed?