I didn't answer as the call was forwarded from another number with the same area code. I think that the number displayed is spoofed with the same area code to entice you to answer. I called back with anonymous VOIP and the line was busy. Thanks to those of you who reported. Blocked.
Called my mobile number but did not leave a message. I really wish government and the phone companies would work together to shut down unwanted solicitations. Surely this behavior meets the legal definition of harassment.
It's a recorded message that always starts with the woman apologizing, saying she dropped her headset. Since it's a recording there is no way to get her to "stop."