One NCCO action (the JSON building block of a Vonage Call Control Object document).
Arbitrary action-specific fields (e.g. eventUrl, from) without widening to any.
eventUrl
from
any
The action verb ('connect', 'talk', 'input', …).
'connect'
'talk'
'input'
Optional
The connect-action endpoints (the websocket media leg for media-bridged calls).
connect
One NCCO action (the JSON building block of a Vonage Call Control Object document).