Hi Brett Thanks for the reply, can you please clarify it a bit more. Yes, there is no maddr in Via header received. When UAS resolves FQDN mentioned in Via header, it receives the "other"(Looks like UAC has 2 entries in DNS server for this hostname) IP address at top. Hence it sends responses back to the other address. Do you mean that UAS should somehow send responses to both addresses received in DNS reply? UAC is not accepting responses at "other" IP.
Thanks Kchitiz On Fri, Sep 19, 2014 at 6:45 PM, Brett Tate <br...@broadsoft.com> wrote: > > My problem is following- > > Application receives an INVITE message from source IP address A with > FQDN > > in Via header. FQDN is resolved through DNS A query and receives DNS > reply > > where IP address B is mentioned at top and IP address A is mentioned > after > > that. So, all the responses are sent to IP address B. Calling side keeps > > retransmitting the request from source address A and call does not go > > through. Is there anything which can be changed in application's > behaviour? > > The server should follow RFC 3261 section 18.2.2. > > Based upon what you provided (assuming no maddr or connection issues), the > UAS should add and use the received address. It sounds like the UAS > didn't add the received parameter for use with the evaluation. > _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
