Jay Milk
2008-Jun-02 22:11 UTC
[asterisk-users] For all your office needs... and voip-greylisting
Hello all, not sure this belongs here, but I'm wondering if anyone else has received "phone spam" lately. Over the last eight weeks, I've received over 60 calls to my toll-free numbers, originating from various fake numbers in the 940 and 956 area codes. When I still *listened* to them, they began with "for all your office needs go to smtmco.com." Whenever I call the numbers back (based on caller id), I get one or two rings, then a click, then dead air. That's also the reason I'm posting this here -- these folks either have access to a large pool of numbers, or to a list of "dead" numbers. The last six numbers (three today) are: 940.387.0483 956.982.1640 940.891.6197 956.554.7617 940.891.6099 956.421.3378 The 956 numbers are all SWBell exchanges, while the 940s are GTE/Verizon exchanges. All calls came in through my toll-free numbers (which in turn are hosted by vitelity/exgn). The website referenced isn't loading, but registered to: Registrant: Sales Team 321 High School Rd NE, PMB 348 Suite D3 Bainbridge Island, Washington 98110 United States (800) 921-0136 ; NS1.ORDERSHOPPER.COM Ordershopper.com also seems a dead-end, as it's registered "by proxy", as all good spammers do. I have since established a greylisting function, which simply does the zapateller and then prompts the caller to call back within ten minutes to be put through. If the same caller (by ID) calls the same number within those 10 minutes, he's put through to a person and whitelisted. If the caller hangs up before hearing the message (during the SIT tone), the numbers is marked for blacklisting. Outgoing calls are automatically whitelisted, as are certain (local) area codes. This has kept the phone silent for a couple of weeks, and afaik, no valid calls were killed. But the real question is -- has anyone else seen this?