Yeah... you're definetely going to need some call accounting software.
The Definity has the information you need, but only at the time it occurs. In order for you to be able to get useful reports, you need to have somewhere for the definity to store the said information, which is where that software comes in. All transactions on the definity get thrown into that software, and it then is responsibile for making reports, storing, etc.
There are many options, each with its inherent benefits.
If you're just trying to see what one person is up to, and you have an extra console screen to dedicated it... you can trace a station and watch what it does, as it does it. And if you do that via some type of console program, you can log the output of it. That's one way for just one station though.
Nick