fixed income networking call

sophomore  from a non target school really interested in doing fixed income s&t. i cold emailed a fixed income analyst (former SA for the internship im trying to get at MS) and i have a call w him on friday: what are some questions i should ask him? how can i be persistent to get my foot in the door without being rude/pushy? how will this FI S&T call be structured compared to say an IB networking call? obviously i cant just straight up ask him "how do i get an interview" "what technicals do i need to know" without looking like an uneducated dumbass. pls any help is much appreciated idek where to start, hes the first fixed income person ive talked to besides a FI recruiter and she doesnt work on the desk obv. thxxxx