This is a telemarketer. If you answer the call, that is all they need to get paid for the call. Doesn't matter if you buy anything or not. Best to ignore the call & block the number if possible. Registering on a "No-Call" list, whether State or Federal, will get you more telemarketer calls than you can imagine. After a few months of reporting telemarketers to "no-call", it occurred to me that this was how more telemarketers got my phone #.
This number belongs to Caller: Commonwealth Financial Systems a Debt Collector calling from one of many numbers. They are more bottom feeders in the junk debt pool trying to collect a debt that is out of statute, and that only a fool would attempt to pay under the delusion that it would make a difference on his credit report.