Yes they interview and it is a tedious process. Will phone you and then call for in person interview. Will offer job over the phone. Asked around twenty different questions in both interviews.
It was a relatively quick process. About a one week turn around from application to interview. All were video/phone interviews for a remote position. Very basic customer service and experience based questions.
Interview questions [1]
Question 1
Tell me about a time you dealt with a difficult/upset customer. All were experience questions.
I applied through a staffing agency. The process took 2 weeks. I interviewed at Unum (Chattanooga, TN)
Interview
Asked the usual interview questions "How do you handle difficult calls?" and "How do you manage your time?" It felt like a conversation in the session and I did not feel nervous.