Another number used by a collection company, I think. It started like..."Thank you for calling ERC". Press 1 to report a wrong number. Press 2 if you want to pay in full..."
I just hung-up. How strange. Ever since I registered for the  do-not-call registry, I have gotten tons of calls from all sorts of numbers, automated solicitations, collections. Same companies using different numbers.  Well the next best thing is to start blocking them. I hope your phone has that blocking feature.