When I first read this post I did not know what advanced calling was... then I did some googling and found it was a Verizon feature... so I did not answer, but kept following along when I saw others post to it.
Now after thinking about bigguy's reply for a while, I found it very interesting that Verizon blames Moto and Moto blames Verizon... and I remembered the same thing happening with one of my Verizon phones in the past, and it wasn't with Moto at the time. Think about that a second. Just one of the many reasons I'm not with Verizon anymore.