"Call center representatives are masters of communication. Employers are looking for candidates who have superb customer service skill and can easily explain issues to clients without face-to-face contact. In preparation for an interview, make sure you are well-versed in the company's operations and main products. They may ask you to sell them a product or role-play a scenario with an irate customer."
Asked me how I would handle customers who called and asked a question I didn't know about. Or how I would handle a customer with complaints.
List the steps I would go about in helping the customer in the numerous situations.