If you could get a PAPER copy of the application form and have it in front of you during your phone interview, that would be very helpful to both YOU and the SS representative doing the interview. Look it over before your contact with them so you can be prepared.

I will look and see if it is available online from a source other than SS.gov as that will throw you into an online application, if I remember correctly. That is how and why I filed online. I did not have a paper copy. That is also why it took me so long to complete it. If you file online, you can start it, and then come back to work on it later. It took me weeks to complete mine online but I am very slow and needed to go look up stuff. Any reason you don't want to file online?

When you get to specific parts that trouble you, you can always ask here for help. While no one here can tell you how to answer, the people here can at least help guide you along the way.