Robert Chen wrote:
> I want to create CDR in sip proxy server.
If only I had a nickel for each time someone tries to do per minute
billing in a proxy, I'd be rich. Sigh.
>
> I have a question:
>
> Let's say UA call UB, UB send back 200OK.
>
> 1. If I set the connected time as the SIP server get the 200 Ok, how about
> proxying the 200Ok to UA but failed. If I set the connected time as the SIP
> server get the ACK, how about proxying the ACK to UB but failed. Also
> sometimes ACK directly go between UA and UB.
All excellent reasons why figuring out per-minute billing in a proxy is
quite a difficult proposition.
In a PC->PSTN scenario, the gateways are ideally suited to determine the
per minute usage, since they know for sure. THis isn't always possible,
especially in wholesale and prepaid scenarios. There, you need to employ
B2BUAs plus a whole bunch of security mechanisms to avoid fraud.
-Jonathan R.
--
Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Avenue
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.jdrosen.net PH: (973) 952-5000
http://www.dynamicsoft.com
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