Set up : *21*(Dial phone number to divert calls to, then)#
Check status : *#21#
Switch off : #21#
Divert calls you do not answer in 15 seconds
Set up : *61*(Dial phone number to divert calls to)#
Check status : *#61#
Switch off : #61#
Divert calls when you are engaged
Set up : *67*(Dial phone number to divert calls to, then) // (Followed by the number you want your calls diverted to) // (Phone number you want to divert to)#