Cannot call 'send' once a close message has been sent.

[abrar360]

Once the LLM hangs up a phone call, and closes the websocket connection. Pipecat still continues to try to send packets over it which causes issues:

[markbackman]

How are you shutting down your Pipeline?

You can either:

• push an EndTaskFrame upstream, which results in the source sending an EndFrame downstream to shut down processors (recommended)
• push an EndFrame from the PipelineTask

[abrar360]

Right now, I'm just providing a tool called hang_up_phone whose handler makes an API call to the phone provider to end the call. The transition handler then transitions to the end node (which is basically just a dummy node) which is probably pushing the end frame via the end_conversation post action. Based on what you're suggesting I might need to swap the order of that so that end_conversation action is called before making the API call to hang_up.