From reading the forums here, it was my understanding that without signing up for hotspot @ home, I can use the 8320's wi-fi to access UMA against my pool of minutes. When I connect to my home wireless router or any other open network, i can access via wi-fi but cannot make phone calls via uma. I don't even have the uma logo in upper right corner, does that logo appear automatically if i connect via wifi? right? Anyway, i believe i have a defective product and need to exchange, if anybody has any recommendations to certain settings, please advise.