Hello, the r-uri is added as a Contact address for 3xx replies -- I don't remember if this is some RFC requirement or just an implementation of the sl function for 3xx replies (well, I haven't implemented those function either).
The active branches of the request are added as contact header to the reply. So you can practically use append_branch() as many times as you need and then do sl_send_reply("3xx", ...). You don't need to append headers to replies explicitely. Cheers, Daniel On 04/06/15 13:59, Ali Taher wrote: > > Hello, > > > > I’m trying to build new contact header that will be sent from Kamailio > as below : > > > > > > load_gws(1, $rU, $fu); > > append_to_reply("Contact:"); > > while (next_gw()) > > { > > > append_to_reply("$ru"); > > } > > append_to_reply("\r\n"); > > sl_send_reply("300","Multiple Choices"); > > exit; > > > > > > yet I’m getting two Contact headers as shown in below SIP message. > > How can I remove second contact header (highlighted below in gray) > > > > Via: SIP/2.0/UDP > 192.168.26.3:42528;branch=z9hG4bK-d8754z-4c2cc56c3145b446-1---d8754z-;rport=42528;received=192.168.26.3 > > To: > “9612"<sip:9612@192.168.110.181>;tag=b27e1a1d33761e85846fc98f5f3a7e58.1a8d > > From: "test"<sip:test@192.168.110.181>;tag=8571af74 > > Call-ID: Y2MzOTNiOGRhMTc2NDkwZjIxNzZhYTAzZmM0OGE3NDY > > CSeq: 2 INVITE > > Contact: > sip:9612@C001,sip:9612@192.168.26.1,sip:9612@192.168.26.6,sip:9612@192.168.26.8 > > Contact: sip:9612@192.168.26.8 > > Server: kamailio (4.1.8 (x86_64/linux)) > > Content-Length: 0 > > > > > > Thanks, > > Ali > > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Book: SIP Routing With Kamailio - http://www.asipto.com
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