I had an initial short, phone interview. It was only around 10 minutes, and I just explained my interest in the organization.
My second interview, in person, was at the office. It was also short and informal. We talked about my interest in the organization, my background and how it relates to the daily work of Clean Water Action.
My third interview, the "Observational Interview," started with a team meeting, then training, and later we got on the phones and made some calls. The team meeting was all about numbers - who made quota, who didn't, celebrating goals, pushing employees to work toward goals. Training consisted of practicing the script, and our trainer telling us (me and two other interview candidates) how to get money from people on the phone. He even made a few calls to show us how it was done. Lastly, we got on the phones and "auditioned" for the job. It probably helps to be fast, to make as many calls as possible in a short amount of time.