[Freeswitch-users] Re-transmit picks up new dns ip address

[Chris Martineau]

Hi,

Have a scenario whereby FS sends an invite to another downstream sip server which is late replying and fs then sends a re-transmission, however fs then subsequently gets a reply. Not a major issue as everything should sort itself out.

The problem I have is that the downstream server is on a dns-srv roundrobin between 2 servers and the re-transmission is resolving a different server.
This seems to be causing the replies that have subsequently come in from the original server to just bounce until they timeout.
The re-transmission to the other server seems to carry on fine but sometimes generates a 482 merged call error.

The main effect is just messy call stats as I get strange 483 errors generated by fs for some reason internally for the first call and also a normal error or cdr for the re-transmitted part of the call.

If I set the downstream server to a fixed ip everything works fine.

I assume this should not happen and we should be able to use  a dns-svr destination without problems (or not!).

I may be just not setting something correctly, any ideas.

Many thanks


Chris



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