Hi all. I've been trying to build a Brain Storming Assistant with vapi that will passively listen to me ramble without interruption until I ask it to become an active participant in the converstaion. I cant get vapi to stay silent for longer than a minute or so. Ive tried multiple prompts including asking it to store a "state", played with silence timeout, response delays, etc... I still cant get it to sit quietly for long. Appreciate any advice.