Turn it on
Turn it off and switch back to Voicemail
Call 159 and follow the prompts or SMS ON to 159
THEN
Dial ** 004 * 0411000160 # on your phone's main calling app and press the Call button.
Dial ** 004 * 0411000321 # on your phone's main calling app and press the Call button.

Optus SurePage plan Monthly access Cost per message sent Included calls per month Cost per call answered by Surepage operator (after credit for included calls are used up)
SurePage Direct $0.00 $0.00 N/A $1.20
SurePage Select $6.99 $0.00 First 6 calls included under this plan $1.20
SurePage Value $11.99 $0.00 First 11 calls included under this plan $1.20
SurePage Essential $19.99 $0.00 First 20 calls included under this plan $1.20