On Tue, 2005-10-18 at 21:00 -0500, Andy Hamilton wrote: > Or, perhaps more useful, what about something similar to a spam > filter. Granted, there are many types of and theories for identifying > spam and other unwanted messages, but what about adapting something > that could be applied to this telephony service? > > It could learn what sort of "threat" an account poses by examining > number of outbound calls in a time frame, duration of said calls, > consistency in calling specific numbers, etc. > Something that would identify suspicious behaviours/actions...
Ultimately this boils down to two types of things which matthew hinted at early on. Frequency of calls and duration of calls. The more calls per hour (or whatever) the higher the probability someone is doing something undesirable. The shorter duration those calls are the higher the probability. Wrong numbers are typically fairly infrequent, when someone dials one they dial the correct number and go on from there, so a couple short duration calls isnt a cause for concern. However a bunch of short duration calls either continous or as an average indicates something that is not desired. Ultimately it boils down to some fairly simple math to start rejecting calls. -- Trixter http://www.0xdecafbad.com Bret McDanel UK +44 870 340 4605 Germany +49 801 777 555 3402 US +1 360 207 0479 or +1 516 687 5200 FreeWorldDialup: 635378
signature.asc
Description: This is a digitally signed message part
_______________________________________________ --Bandwidth and Colocation sponsored by Easynews.com -- Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
