The first in-person job interview is typically a one-on-one interview between the applicant and a hiring manager. The interviewer will ask questions about Employers use phone interviews to identify and recruit candidates for employment. Phone interviews are often used to narrow the pool of applicants who will be invited for in-person interviews. In other cases, a phone interview may be the only interview you have. So, treat it with the same importance as you would an interview with a hiring manager in an office.