Yesterday I was shown how to configure the TAPI interface with my demo version of Dynamics AX 2012. I must say that it is very cool. I wish that everyone had this integrated with their ERP's so that when I call up other customer service locations, I don't have to type in my account number all of the time.
I created a very short walkthrough of how this is configured and works. If anyone is interested, I posted the slides on SlideShare: http://www.slideshare.net/murrayfife/tapi-integration-with-dynamics-ax-2012