The MAP-D by itself is only a gateway of information being sent from the switch. In order to generate call information the ASAI features need to be enabled (purchased) on the Definity. There are two ASAI features, ASAI Core for the switch to broadcast call data and ASAI HBR, also known as ASAI Plus, which is a 2-way conversation between the switch and a controlling adjunct, such as Genesys. If you need to do 2-way control you need to purchase both software features. In order for ASAI to work it needs to talk to a Telephony Server (T-Server), which takes the call information from the switch and based on a pre-defined script does something with it. That something could be detecting an incoming ANI, doing a database lookup and popping the screen with that customer's records.
Kevin