Currently three types of callouts are supported: conference callouts, text-to-speech callouts and custom callouts. The custom callout is the most flexible, but text-to-speech and conference callouts are more convenient.
Optional
ConferenceCalloutRequest
CustomCalloutRequest
Sets the type of callout.
TtsCalloutRequest
Currently three types of callouts are supported: conference callouts, text-to-speech callouts and custom callouts. The custom callout is the most flexible, but text-to-speech and conference callouts are more convenient.