New to Java

Hello all, I'm doing a Computer Science degree, and my topic for this semester's programing project is Caller ID Management. I'm supposed to implement a call-logging software in Java, and JTAPI seems like a ready solution, but the problem is, I'm not quite sure how to use it, and my lecturers are clueless. I was told to use a caller ID-enabled 56K modem for my project, and I'm lost.

I've been doing some research on how caller ID works from phone to phone, and I've read how it works, from what meagre sources I can find on the net - emphasis here on the ASCII format for the CND message, and the format of the protocol used.

My questions are as follows:
1) Will I be able to use JTAPI for my project? I know it's written on the JTAPI page that it can be used for call-logging, but I'm going mad trying to finish going through all the specifications provided on this site, and I'm still not even sure which package I should be looking at.

2) If the caller ID is going to be from phone to pc, do I have to be directly worried about the protocol, and the format & content of the received data messages, or will the JTAPI methods deal with that internally?

Unrelated request:
If anyone has any good sites or documents on implementing Caller ID (preferably as detailed as possible), I'd be grateful if you helped me out abit. I've only managed to find two pages of something helpful: most of the info on Caller ID is too superfluous to be of any help.

Thanks for your help! :)