[asterisk-users] blocking spammer by callerID "name"

[Joseph]

Thank you for input.
Good idea, I like your approach with press "number" to leave a message", this will definitely cut the robo-calls voice-mail. 
Do you use database for white-list?
Can you post a section of your dial plan that deals with blocking?

This is a medical clinic so white-list, black-list is not a good solution but it might be good for home use.

Thanks,
--
Joseph

On 06/13/13 14:30, Chris Gentle wrote:
>Google the number and you can probably find other complaints and
>possibly who it is.  Not that it will matter, there's nothing you can
>do but block it.
>
>My approach to call filtering is:
>
>Deny All
>Allow Some
>
>I have a whitelist of callers I always want to accept that may include
>businesses outside my local area code.  If my dialplan doesn't
>recognize the incoming number I send them to a voicemail mail where
>they have to press "5" to leave a message.  That knocks out the robo
>dialers.  Then I google the number and if it's a spammer, I add them
>to a blacklist where the call is dropped immediately.  Really no point
>in playing funny or cute messages to them or even telling them they
>are blacklisted because it's usually an auto-dialer and a real person
>doesn't hear it anyway.
>
>On Thu, Jun 13, 2013 at 1:31 PM, Joseph <syscon780 at gmail.com> wrote:
>> I have a subroutine to block spammer by CALLERID(number)
>>
>> exten => 4,1,GotoIf(${BLACKLIST()}?blacklisted,s,1)
>> exten => 4,n,Set(goaway=${CALLERID(number):0:2})
>> exten => 4,n,GotoIf($["${goaway}" = "V4" ]?blacklisted,s,1)
>> exten => 4,n,GotoIf($["${goaway}" = "V3" ]?blacklisted,s,1)
>>
>> but I just got another spammer (automated calls) who rotates his callerID
>> number that starts with valid area code so blocking by prefix is not
>> practical but it seems to me he uses the same (or few same) caller name
>> like:
>>
>> "Brit. Columbia "" <16047726633>"
>> "KHAN SHARON "" <16042984429>"
>> "Brit. Columbia "" <16042231781>"
>>
>> So I was thinking the same subroutine can be used to block by
>> CALLERID(name), isn't it:
>>
>> exten => 4,n,Set(goaway2=${CALLERID(name):0:11})
>> exten => 4,n,GotoIf($["${goaway2}" = "Brit. Colum" ]?blacklisted,s,1)
>> exten => 4,n,GotoIf($["${goaway2}" = "KHAN SHARON" ]?blacklisted,s,1)
>>
>> The spammer is soliciting lowering credit card interest charges etc. anybody
>> know who it is :-/
>>
>> --
>> Joseph