I just bought an e70 today from a person who got it for free, direct from Nokia, because a friend is working for that company. The previous owner was using the old AT&T wireless SIM card, not Cingular. Does this mean it was programmed using the old AT&T wireless? (I'm getting confused b/c Cingular is turning back to AT&T, just want some clarification on that).

Now if I came into a problem unlocking the phone, do I call Nokia or do I need to call my service provider?

Thank you in advance ^_^.