MathWorks Application Support Engineer interview questions

Applied online and was asked to take a video interview with pre-recorded questions after about 5 days. Had not taken the video interview within 7 to 10 days and got an email for a phone interview appointment from a technical recruiter. The recruiter first introduced Mathworks, EDG, and the position of Application Support Engineer, then asked some common questions as everyone posted here like introduce yourself, why Mathworks, why EDG and Application Support Engineeer, and strengths and weaknesses. No comment or question on my response throughout the whole interview. I was asked if I had any question, and got nothing valuable from the recruiter. The entire interview took about 15 mins. In fact it's my first interview, so I was a little nervous and was not so fluent with my response. I think I screwed it up and did not sell myself well.