Lot of engineers have asked me this question , So here is the answer ..
The aa_sample1.aef file is a script that answers a call, asks for the name or extension of the person to whom the caller would like to be connected, and transfers the call.
Note
You can modify the aa_sample1.aef file to create your own AA script. Make a backup copy of the aa_sample1.aef file before modifying it, so that you always have access to the original file.
Have fun with it , Change is to something silly , just for heck of it ..We engineers need to have some fun too ..