[SR-Users] provoke delay?

[Alex Balashov]

Interesting stuff!

Just to clarify, I was not accusing you. I was being a little tongue- 
in-cheek.  :)

--
Alex Balashov - Principal
Evariste Systems LLC
1170 Peachtree Street
12th Floor, Suite 1200
Atlanta, GA 30309
Tel: +1-678-954-0670
Fax: +1-404-961-1892
Web: http://www.evaristesys.com/

On Oct 26, 2010, at 1:33 PM, "Nicolas Rüger" <NicolasRueger at gmx.de>  
wrote:

> Hi Alex,
>
> NO that definitely NOT the motive!!!
>
> I do write my master's thesis about SPIT prevention (SPAM over  
> Internet Telephony) and I try to implement several ideas in kamailio  
> to detect SIP-URI's that try to "spit".
>
> So don't worry...I won't use your help to do illegal stuff! Hope  
> that's clarified.
>
> Amongst other ideas I try to implement a functionality that matches  
> a suspicios caller's identity on a list in the database.
>
> Afterwards the caller is either rejected or delayed, depending on  
> his reputation that I compute before using other ideas.
>
> I want to delay some of these suspicios calls instead of rejecting  
> them completly as rejecting a call is really hard.
>
> Further I expect automatically initiated calls to have a timeout. If  
> the "spitting" party won't get an answer fast enough it might walk  
> on and try another IP.
>
> The idea is indeed adapted from the "e-mail world".
>
> Regards,
>
> Nicolas
>
>
>
>
> -------- Original-Nachricht --------
>> Datum: Tue, 26 Oct 2010 11:47:52 -0400
>> Von: Alex Balashov <abalashov at evaristesys.com>
>> An: sr-users at lists.sip-router.org
>> Betreff: Re: [SR-Users] provoke delay?
>
>> I get this question a lot privately from people who want to play  
>> games
>> to pad out the billable time in a call by sitting on it for a while
>> before passing it up to their vendors/upstreams.
>>
>> If by chance that is the real motive, don't do it.  :-)  It's far  
>> more
>> trouble than it's worth.
>>
>> -- 
>> Alex Balashov - Principal
>> Evariste Systems LLC
>> 1170 Peachtree Street
>> 12th Floor, Suite 1200
>> Atlanta, GA 30309
>> Tel: +1-678-954-0670
>> Fax: +1-404-961-1892
>> Web: http://www.evaristesys.com/
>>
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>
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