The guy seemed pretty keen on reminding me 4 or 5 times during the call that the codes wouldn't work along with the CallWaiting.
Of course, The codes worked without a hitch.
The call would have taken 4 minutes instead of 30.
CFNA (call Forward No Answer)
*10 0X XXXXXXX#
CFI (call Forward Immediate)
*11 0X XXX XXXX#
CFB (call Forward Busy)
*13 0X XXX XXXX#
VMS (Switch Voicemail off and on and change the Ringing time yay!)
*68xx# <----- where xx is seconds before VMS divert.