Here is a list of key contact numbers (if dailing from an internal line, add an additional 0 before the number):
Emergency Services (fire, police, ambulance): 000
Duty Astronomer: 02 6790 4077
Observer: 02 6790 4078
On-call Pager (Narrabri): 02 6790 4076 (ring, wait a few sec, then dial 2)
SOC Astronomer Desk: 02 9382 4482
SOC ATCA Observing Room: 02 9382 4548
Marsfield Reception: 02 9372 4222
Narrabri Reception: 02 6790 4000