got 2 calls from this number while I was on a call, did not answer

Just got a call from this number and was asked via computer voice to hold the line untill an "important message" could be delivered. after holding for a bit they ask me to press 1 to continue to hold. after a short while the computer came back and stated that all operators were busy and asked me to call 123-456-7890.  I decided not to call them as I searched on the net and found only negative info and a voip (net based SKype?) phone.

I've received several calls this week from this number and answered the call today. I'm not the person and don't know the person he's looking for, but he wanted my name and I told him that's none of your business, I'm not the person you're looking for.

I asked who he is, he said he was calling from J C Christianson...

I said, a debt collector? And he said they do customer service, contract fulfillment and collections.

I said, your collection clients always give valid numbers... right? I'm not the person you're looking for.

answeared no one there

Jean Miller - Debt Collector also uses (800) 235-2731