[OpenSIPS-Users] Fraud Detection Module - counters

Adrian Fretwell adrian.fretwell at topgreen.co.uk
Sun Oct 1 07:48:36 EDT 2017

Hi Liviu,

My version is 2.2.1, it has been running and very stable since August 
last year.  Is it possible for me to patch just the Fraud detection module?

Kind regards,


On 26/09/17 17:24, Liviu Chircu wrote:
> Hi,
> Could you please provide your OpenSIPS version? Both concurrent and 
> sequential calls have received fixes within the past year.
> Best regards,
> Liviu Chircu
> OpenSIPS Developer
> http://www.opensips-solutions.com
> On 20.09.2017 11:35, Adrian Fretwell wrote:
>> Hello,
>> Can anyone help clarify a couple of of points that I have not been 
>> able to with the module documentation?
>> I understand that all of the counters should reset at the start of a 
>> new time period with the exception of sequential calls.
>> I discovered that the sequential calls counter only gets reset if a 
>> call is made that actually matches another rule in the fraud 
>> detection table.  So for example I have a rule with a 00 prefix 
>> (international dialling from here in the UK) but I have no rule for 
>> prefixes for ordinary geographic numbers, 01, 02 etc.  So if we 
>> alternate calls between international (00) and domestic (01) the 
>> international sequential calls counter just keeps increasing until 
>> the critical limit is reached.
>> So to rectify this, I added some rules for the domestic (01 or 02) 
>> calls.  This now causes the international sequential calls counter to 
>> reset OK but I now have a new problem.  My concurrent calls counter 
>> is increasing but not getting reset at the change of a time period.  
>> To add to this issue I have discovered that if I make a call to a 
>> non-existent number and the gateway returns 404 not found,  the 
>> concurrent calls counter increments but does not decrement at the end 
>> of the call. The same is true if I call a valid number but cancel the 
>> call before the callee answers.
>> Am I missing something here? Any feedback or ideas would be appreciated.
>> Kind regards,
>> Adrian Fretwell
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