Need some clarification on subscription setup for a webhook

I want to be able to send to an endpoint via a webhook at the end of each call, presently I have

"call_states": [
"transcription",
"recording"

Nothing gets sent to the endpoint, unless I do a recording of the call using the record button.

What should I add to the above call states? Should I add end-call?

With the call_id I can always retrieve the transcription when there is no recording but I am not getting a message sent to the endpoint unless I record.