I believe this phone call was from a debt collection company called Convergent calling on behalf of U.S. Cellular.
I had already received a call from Convergent this morning, from the number 603-263-7059. When I answered the phone, a recording came on saying 'they were trying to reach (my name),' and gave me 3 or 4 options to respond to that call. It said I could either confirm I was (my name) by hitting #1, hit #2 and put the call on hold, or choose from one or two other options. I put them on hold while I looked up the phone number on 800notes.com, but when I went to deal with the situation, I actually ended the call by mistake. Someone else on your site had said they got a call from that number, and that it was from Convergent, which they said is a collection agency for medical bills, but I now know that it also represents U.S. Cellular, too.
Convengent sent me a bill last month representing U.S. Cellular, plus added an additional $20 on top of my debt,(which is fairly small). Apparently, a collection agency is legally allowed to charge an additional fee while attempting to collect a debt, IF your contract with your original debtor says that if they have to hire a collection agency to collect a debt from you, you may be charged an additional fee. Be careful with this Convergent... as they're boardering on harrassment now with me, because so far, they've called me from: 321-873-8227, 857-445-0738, 857-250-3661, 603-263-7059, and now 857-233-9265. And they called twice today. It's like they're trying to trick us by using different numbers to get ahold of us. Good luck dealing with them!