Does the N86 not support wi fi VOIP calls, had this reply from truphone recently:
" Truphone does support the Nokia N86 without any problems.
>
> Could you please try to delete the application and start from the beggining again?
>
> Pease note that Truphone for Noki N86 is only available for Truphone Anywhere calls. You will not be able to make Wi-Fi calls with the current application.
>
> If you have any further queries please reply to this email for assistance.
>
> Regards,
> Maria
> The Truphone Support Team"