| Relationships | Role | Relationship Start | Relationship End |
| Bt Australia Limited | Parent | 9/2/1990 | 9/29/1999 |
| Bt Australia Limited | Parent | 12/31/1985 | 9/1/1990 |
| Relationships | Role | Relationship Start | Relationship End |
| Bt Australia Limited | Parent | 9/2/1990 | 9/29/1999 |
| Bt Australia Limited | Parent | 12/31/1985 | 9/1/1990 |