I also received the nokia lumia 900 but the visual voicemail setup failed. I had to reset my password and when I go into voicemail naow it's the same old voice mail (not the visual navigation). when I called customer service they didn't know what I was talking about and couldn't help me.

The visual voicemail I'm NOT seeing on the phone is here https://www.att.com/learningcenter/tutorials.do?tutorialId=974570#fbid=ipc-Fy7vDmV my voice mail still acts like the old wpy voicemail