[OpenSIPS-Users] OpenSIPS Billing Discrepancy

[Flavio Goncalves]

Hi Sahil,

There are many cases were discrepancies are found on billing.

1. Missing BYE messages (fix with RTP Timeout notification or in dialog
pings or SIP session timers)
2. 200Ok in provider, but no 200Ok in customer (Network or processing
Issues)
3. Time drift in virtualized environments (VMware/Linux environment)
4. Gateways in the middle (We have 2/3s once caused by a slow BYE
processing in a gateway/sbc)
5. Rounding (In short duration calls, customers tend to consider 3.1
seconds as 3 seconds while providers tend to consider 4 seconds (have a
pre-agreement with the customer, use microseconds timestamps to decide).

My 2 cents

Flavio E. Goncalves



2014-08-24 10:49 GMT-03:00 sguptaau <sguptaau at gmail.com>:

> Hi,
> I'm relatively new to OpenSIPS but have been able to deploy a few OpenSIPS
> installations at our organisation with the assistance of some experts.
>
> Our environment is of terminating short-duration calls for call-centers
> predominantly.  In such a case, we haven't been receiving accurate billing
> CDRs as the CDRs being generated by the platform have durations that are
> inflated by 40-60%.
>
> It was suggested by someone to enable in-call pings and proxy media which
> have also implemented and whilst this has improved the discrepancies it
> hasn't fully resolved them.
>
> Any tips would be greatly appreciated.
>
> Thanks,
> Sahil
>
>
>
> --
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>
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