Was I just scammed?

I just got a phone call at work that sounded like it was from overseas. The caller was "confirming" our company's "free yellow pages business listing." He already knew our company name and contact info and I said "correct" as he read it back.

Then the call got weird. He got me to spell out my name and then asked for my job title. When I answered, he said that title wasn't in their system and I should just say I was a "supervisor" when he transfered me to someone who was going to confirm our listing.

A second guy came on and said his call was being timed, so to please not interrupt him because he had to complete it in so many seconds. Then he said to interrupt him if the info was wrong. He repeated this mumbo-jumbo several times.

When this caller asked me my job title, I gave my original answer. He said, "A supervisor?" When I answered, "Not really," he hung up.

Has this happened to anyone else? I'm afraid I said "yes" at one point and they'll be able to scam me.