Hey All,
We are running a small SIP/IAX termination service at the moment (planning on growing it) with 2 asterisk machines. One terminates the SIP/IAX calls from our customers and one is our gateway to our upstream provider. Both machines are logging CDR data to the same postgres table using the cdr_psql module.
The problem I am having is I'm trying to work out how to link the CDR records into a single 'call stream', rather than having separate records per machine the call passes through.
Reading around on the Wiki and doing a bit of googling, I've worked out that what I'm trying to do is the "normalization" step of "CDR mediation", but I have not been able to find out any specifics about how to go about it.
I would have thought that the originating asterisk machine would generate the UniqueID for the call (Message-ID in SMTP terms) and pass that along the call path, but each machine is using the epoch timestamp of when it sees (or records, not sure which) of the call.
I know I can use the NoCDR app on the first machine in the chain, but that does not scale if we need to add more machines to our network.
Does: a) anyone have any idea of what I'm trying to explain, and b) have any pointers of where I can find more information about doing this?
Thanks Darryl
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If you want to live up to the whole "There is more than one way to do it" slogan, you have to give someone a swiss army chainsaw ...
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