"They" called me also - an autodialer from a private unlisted number - and i think they also tried calling my mother at 4am. This started after i tried to get a wireless landline set up through Vonage to my mother's old house. this process was never completed because there is no DSL or regular phone landline connection to the house, so Vonage's system was incomaptible. From what i am reading on this site there apparently there is a phone scam going on from "Financial Services". I know that retired ex-military have been recent targets, a bulletin has been posted on the VA website concerning this.

I later got a message on my unlisted cell phone citing this phone number as a callback number, and a reference number was cited. i am going to have all incoming 800 numbers blocked from now on, and i think i will have to have my mother's phone blocked for incoming 800 and private calls. She is elderly and would likely get confused and give out her SSN and other personal information, especially at 4am being woke out of a sound sleep.