You can collect event data for further analysis in Insights. To collect this data, you can access Voice Gateway events in the Output Transformer and the
input.data.event Input object, except for the CALL_COMPLETED event. You can’t access CALL_COMPLETED in input.data.event since the Input object’s content is deleted after CALL_COMPLETED occurs. Alternatively, you can register the CALL_COMPLETED events by enabling the CALL_COMPLETED toggle in the Call Events section of the Voice Gateway Endpoint configuration.
The Output Transformer is executed after processing the flow. For example, if you receive the CALL_COMPLETED event, write some metrics in the transformer via HTTP request.
You can also use a Lookup Node with the Call Event Status type for reusing these events, streamlining call handling and improving efficiency.