How do I set up call forwarding on my Telstra landline?

1. To turn on Call Forward Immediate for all incoming calls: Pick up Phone * 2 1 Phone number # Phone Down.
2. To turn off Call Forward Immediate for all incoming calls: Pick up Phone # 2 1 # Phone Down.
3. To check if Call Forward Busy is on or off: 1 # Follow prompts or Pick up Phone * 2 1 Announcement # Phone Down.

Source: Telstra