Visual Voicemail on O2 with simplicity plan

[BNZ1]

I have a factory unlocked iphone 3G from Vodafone NZ that I use in the UK on an O2 simplicity plan (not the iphone plan but it does have data). Is there anyway to use VVM, or would that require O2 to have something enabled on my account? I am running 2.2.1 JB

 

[Moi un Mouton]

You can only get that with the official iPhone plan, not with Simplicity