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@evaristesys.com An: sr-users@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/
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users