The number is different each time and probably spoofed.

From: Work 
Sent: Wednesday, November 25, 2015 4:55 PM
To: [email protected] 
Cc: [email protected] 
Subject: Re: [AFMUG] long messages on toll free number?

Setup a 1-900 number and redirect that number when it calls in and make some 
money? :) ... You can't block the caller in the BPX?

—
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On Wed, Nov 25, 2015 at 4:31 PM, Ken Hohhof <[email protected]> wrote:


  OK, this is kind of OT, but maybe someone here knows the answer. 

  For a few months now, we've been randomly getting long voicemail messages, 
  always some guy blabbing about government programs and stuff, almost sounds 
  like a radio show, not a political message like a robocall, I'm guessing 
  just constant voice to keep silence detection from ending the message. 

  I'm sure it's either a scam, or some attempt at toll fraud, but I can't 
  figure it out. The calls come at all hours but mostly at night, and the 
  caller ID will say something like NEW YORK NY or SAN ANTONIO TX. 

  I was just looking at our Windstream bill (they redirect our toll free 
  number because years ago we got that number from McLeod), and I realized 
  these calls are coming in on our toll free number. Which is really just an 
  alias for our local DID which goes to our VoIP PBX. Which had the max 
  message size at default 60 minutes. So these messages were all 60 minutes 
  long. I've changed the setting to 10 minutes, but that's still 10 minutes 
  of toll free word salad. 

  I can't figure out who is benefitting from these calls other than 
  Windstream. It's not a ton of money, but I want to stop it. The calling 
  numbers vary so I can't just block them. I looked up a couple of the 
  numbers and they seem to be from bandwidth.com thousand blocks, so 
  apparently VoIP calls, but I'm not sure that means anything other than VoIP 
  makes it easier to fake the caller ID. 

  What are these guys up to? 




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