[Users] Usage of record_route_preset / dispatcher / UAC-Module

[Bogdan-Andrei Iancu]

Hi Andy,

yes, right...it's a matter of choice...

what I was trying to say is that the consistency should be kept and do 
record and loose route on same device with proper IP: either do RR on LB 
with LB's IP and loose also on LB, either do them on proxy with 
proxies's IP.

regards,
bogdan

Andreas Granig wrote:

> Bogdan-Andrei Iancu wrote:
>
>> just a short note...on the sip proxy you should do rr with the 
>> proxy's IP and not with the one of the LB. Once the LB decides which 
>> proxy handles the call, all sequential request must go through that 
>> proxy and ideally to skip the LB.
>
>
> Well, I personally prefer to do rr on the LB, because you can then 
> perform a failover to another proxy on the LB if the specific proxy 
> fails. Think of a scenario where LB routes the INVITE transaction to 
> proxy P1 selected by Call-ID hashing, and after successful 
> call-establishment P1 fails. If the BYE then hits LB, it will try to 
> route it to P1 again because of the same Call-ID, and after hitting a 
> timeout, a fallback to P2 can be performed. So no failover has to be 
> implemented in the UACs.
>
> For accounting purposes, the acc-records can be collected from all of 
> the proxies to create the CDRs.
>
> Just my 2 cents,
> Andy