See 3.2.9.3 . The origin may include a description. The target may supply a unique identifier for the task package. The target supplies the date and time that the task package was created. The target indicates the status of the task.
Values are 'pending,' 'active,' 'complete,' and 'aborted'.
The target may include one or more diagnostics in the task package. These are additional parameters, defined by the specific extended service. If the target is not willing to perform the task before issuing the response it must refuse the request by responding with a status of 'failure' and an appropriate diagnostic. If the target accepts the request, it includes the parameter Task-package in the response. If not possible, the target should proceed as though the value were 'do not wait'.