@Entity
public class Phone {

    @Id
    private Long id;

    @ManyToOne
    private Person person;

    private String number;

    @Enumerated(EnumType.STRING)
    private PhoneType type;

    @OneToMany(mappedBy = "phone", cascade = CascadeType.ALL, orphanRemoval = true)
    private List<Call> calls = new ArrayList<>(  );

    @OneToMany(mappedBy = "phone")
    @MapKey(name = "timestamp")
    @MapKeyTemporal(TemporalType.TIMESTAMP )
    private Map<Date, Call> callHistory = new HashMap<>();

    @ElementCollection
    private List<Date> repairTimestamps = new ArrayList<>(  );

    //Getters and setters are omitted for brevity
}

@Entity
public class Call {

    @Id
    @GeneratedValue
    private Long id;

    @ManyToOne
    private Phone phone;

    private Date timestamp;

    private int duration;

    //Getters and setters are omitted for brevity
}

When executing the following SQL query:
List<Phone> phones = session.createSQLQuery(
    "SELECT * " +
    "FROM phone ph " +
    "JOIN call c ON c.phone_id = ph.id" )
.addEntity("phone", Phone.class )
.addJoin( "c", "phone.calls")
.setResultTransformer( Criteria.DISTINCT_ROOT_ENTITY )
.list();