More input, It depends on many things, for example the transport, with UDP you xan send a late 100 trying after forwarding the INVITE, this way you are sure that one transmission was sent, else the UAC will retransmit to the newly primary server a recreate a fresh transaction.
Replicating the transactions with delayed processing may be an option to favor consistency over availability. I do not think there is such feature in Kamailio, probably because most transactions can be recreated on the fly. On Tue, Aug 4, 2020, 09:27 Julien Chavanton <[email protected]> wrote: > So in fact it may simply work without any replication, except that you > have to disable the failing server > > On Tue, Aug 4, 2020, 08:45 Julien Chavanton <[email protected]> wrote: > >> You may wonder what kind of failure scenario you are trying to address as >> replication will probably fail as well in many cases. >> >> One technique would be to use a domain name in the Via, the transaction >> may not need to be replicated as it can be recreated by the server >> receiving the reply, thanks to SIP resilient design. >> >> However you may have to address the timers and any failover, AVP >> replication (if any). >> >> Probably other small concerns. >> >> >> >> On Tue, Aug 4, 2020 at 8:40 AM Amit Pal <[email protected]> wrote: >> >>> Hi Team , >>> >>> Hope all is fine. >>> >>> >>> >>> My requirement : I have a customer who wants high availability for >>> ringing calls and calls that in process of being set up. >>> >>> Can you suggest an alternate mechanism to achieve replication of >>> transaction state. Can you guide how it can be achieved in Kamailio or is >>> there a mechanism to get commercial support >>> >>> to achieve the desired objective. >>> >>> I am waiting your response. >>> >>> >>> >>> Thanks >>> >>> >>> >>> Regards >>> >>> Amit Pal >>> >>> _______________________________________________ >>> Kamailio (SER) - Users Mailing List >>> [email protected] >>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>> >>
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