I was expecting a call from them in the 30 minutes time frame but didn't get any. This was disappointing since I put in efforts to prepare for the interview.

lengthy interview and redondance of information that can be found in the resume, such as work experience, education, employment history......etc. Or asking about what you are looking for, after applying for specific position. If I applied for a posted position, would not that mean I am interested in that position>