This number has tried calling the office a few times. My boss has answered it in the past, and I had presumed it might be legitimate.
The number called again this morning with a recorded message looking for someone. However, the spot where a recorded name should be present was nothing but silence. I did press 1 to speak to someone, and a guy asked who I was. Not wanting to give my real information, not to mention DTE should already know to whom they're speaking, I asked what the call was regarding. He asked to speak to "Lawrence" (I couldn't make out the last name, but the name itself was _not_ associated with our office). I told him there was no such person at this number, and he claimed that he'd update his information.
I'm very suspicious that this is either an attempt to phish personal information or a call where they claim if you don't pay a supposed non-existent past-due balance, they will shut your service off on the spot. As such, I'd recommend not giving any personal information to this caller. Come Monday, I may contact DTE's customer service number and see if this call was legitimate or not.
I'm going to label this call a prank call since it was somebody asking for a wrong person.
They called again this morning while I was on the phone with a client. They seem to change their MO each call.
First, it was a recording claiming to be DTE, asking you to press 1 to speak to someone.
Next, it was a completely automated message asking you to call back a different number.
Today, it was a live person on the other end. I let him know once again that there was no "Lawrence" at our number and emphasized the fact I had told them this three weeks ago. The guy almost begrudgingly replied he'd do what he could to purge our number from the system.
As you may have seen above, we received calls from this number last spring. Guess what? They called the office again today after a year of no calls.
Today's message was nothing new, though. It was the recorded message imploring our office to call 877-806-1202 to discuss a time-sensitive matter. The boss is presently out, but upon return I'll warn the boss about the fake calls starting again and not to answer/engage them.