I don't want to desilussionate you, but my experience is the same.
Caller ID is not a really usable Filter mechanism. In the past I had an account where I was able to completly set my outgoing caller ID. It could even be non standard conform numbers like more or less then 11 digit US numbers, or only 3 digit numbers, etc. These Caller ID's were set on network side, so they were transported even over carrier borders. (I could call myself on my cellphone with my cellphone number as outgoing caller ID). I have been on callcenter world in Berlin this year, were all the "wolves" meet. They invest a lot of money to reach you and faking a caller ID is I assume one of their easiest tricks. I would be happy if you could prove me wrong :). Cheers Tim On 5/10/07, Dave Bour <[EMAIL PROTECTED]> wrote:
As this is a thread off a topic I spun off another thread...some thoughts...or a pooled database of numbers not listed..doesn't even need to be telemarketers. 1. track the hit count.and last used..collecitvely..see if a number is still being used... 2. name against the company... 3. a list of bogus entries..so when you look at it, you know it's a fake phone number...one that recently came in that got me thinking this was 407 111 1111. Right away, I knew it was a spammer/telemarketer since it's not a valid number...and I was on the offence answering the phone... In fact, a possible update to the blacklist function in asterisk is a database tracking of it's usage. is it a one of that hit me once..never called back... and another issue is the charity type...what's blacklist to you may not be to me, ie..clothing pickup donation charitys...they really annoy me calling several times a week, but one, I don't block as they're good, their caller id is accurate and they actually leave a message with a number offering you to call back if you have something to pick up (granted it's a recording that does that but at least it's not a hangup). Some may wish to block all those... Political donation type numbers are another one that irk some but not others. By putting names against the number and "classification"...you could at least then choose to blacklist once the first call comes in, based on accurate caller id info. ------------------------------ *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Steve Totaro *Sent:* Thursday, May 10, 2007 7:26 AM *To:* Asterisk Users Mailing List - Non-Commercial Discussion *Subject:* RE: [asterisk-users] List of telemarketers?? Things that will make your idea difficult. Although telemarketers are supposed to send their CallerID, many if not most, I see "Unkown". I believe this is illegal but I see it many times a day. I worked at a company with over one thousand toll free numbers, simply changing outbound CallerID to another number defeats your scripts. I could also change the actual DNIS of these calls, so a telemarketer could easily defeat your mechanism and still be legal. I could also send any arbitrary ten digit CallerID and DNIS which looks better to the callee than "Unknown" but cannot be associated to a particular telemarketer. Thanks, Steve Totaro http://www.asteriskhelpdesk.com/ KB3OPB ------------------------------ *From:* [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] *On Behalf Of *Ritesh Agrawal *Sent:* Wednesday, May 09, 2007 4:38 PM *To:* Asterisk Users Mailing List - Non-Commercial Discussion *Subject:* Re: [asterisk-users] List of telemarketers?? Thanks everyone for the responses, encouragement and offers to help. I will get started on this shortly and circle back with you guys. If someone has a starter list, it would help jump start the efforts/motivation :-) Ritesh On 5/9/07, *Noah Miller* <[EMAIL PROTECTED]> wrote: Hi Ritesh - > Does anyone know if there is a known list of telemarketers? > Something like http://whocalled.us/ with an easier access? > > We could all benefit if there was such a thing :-) > If there is enough interest, I could put up a database that everyone can > benefit from. > > I just need some suggestions on: > (1) Adding new numbers based on community responses (some rule to sanity > check) > (2) Method that everyone would prefer to access the dbase. Wow, that's a generous offer. I like the idea of a blacklist for telemarketers. It's bound to be more effective than an RBL for spammers! One thing to note: this may end up being a non-US database. Here in the US, I've experienced great success with the www.donotcall.gov service. If you're in the US and haven't signed up for this service, I'd highly recommend it. Of course, there may be non-telemarketer calls that it would be nice to be able to block. - Noah _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
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