I put a time limit of 900 seconds, but the bot keeps ending the call within 5 minutes, when the conversation is still ongoing. When I test it with the LLM by itself, it doesn't do that. Something about the way Vapi handles the call timing, or shows the time to the LLM perhaps? Is this a known issue? And what are the best ways to guide when and how it ends the call?

share the call id.