It is not weird that you got a disconnection announcement. The company does not receive incoming calls. If you blocked their number they just program another number to get through.
They called my cell and an automated system said, "I'm sorry, a representative is currently busy" and then a woman picked up and asked about me being a homeowner and that she was from some solar business. I asked her to remove me from her list and she kept asking questions, and when I told her a second time to remove me she hung up.
They called my work number and an automated system said, "I'm sorry, a representative is currently busy". I hung up before anyone came on. Repeated calls with automated system.
I keep getting calls from this number and when I try to call back right after it says that the number is disconnected and is no longer a working number. Super weird.