The New_Dialogue is issued to convert a call from Event Data Feed to a SCI dialog. This can be issued only after an Event Data Feed Delivered_Event has been sent for the call.
When successfully sent the call is converted to Service Control and can issue only SCI messages. It cannot issue Event Data Feed or Call Routing Interface messages.
This call can be issued only to an ICM of version 4.5 and above. Issuing this call to versions below this level causes the ICM to return the error condition E_INVALID_MESSAGE.