The history of a contact. The history contains, in a tree structure, all interactions that the contact had with this contact
center. An interaction can have child interactions. For example, an agent's outgoing reply to an incoming email is the child
of the incoming email.
The Hook status of this DN. Note: Status.ON means here that an OnHook event has been received on this DN. Status.OFF means
that an OffHook event has been received on this DN.
host
- an attribute of the system.server-info domain in service
SystemService
The name of the host where the service should run.