OptionalsubjectOptional subject line for the interaction. Available via InteractionTrait.subject once the interaction is created.
OptionalnotesOptional pre-call notes for the interaction. Available via InteractionTrait.notes once the interaction is created.
OptionalcustomOptional custom key/value data attached to the new interaction. Available via InteractionTrait.customFields once the interaction is created.
Additional details that can be attached to an outbound interaction.