Re: [SR-Users] Removing transport=TLS from the contact header

i am trying it but it doesn't change the string. Do I need to use msg_apply_changes() ?? I am trying that but it gives syntax error in the file. log("L_INFO:", "INVITE::: [$ct]\n"); subst("/^Contact:(.*);transport=tls(.*)/Contact:\1;transport=udp\2/i"); if(msg_apply_changes()) { xlog("L_INFO:", "INVITE::: [$ct]\n"); } Rizwan Khan On Tue, Nov 10, 2015 at 11:45 AM, Koray Vatansever &lt;koray.vatansever(a)gmail.com <mailto:koray.vatansever@gmail.com>> wrote: Hi Rizwan, You can try the following: subst("/^Contact:(.*);transport=tls(.*)/Contact:\1;transport=udp\2/i"); On the other hand, there should not be any other contact header modification in your script; for example set_contact_alias(). On Tue, Nov 10, 2015 at 7:28 AM, Rizwan Khan &lt;rizkhan(a)gmail.com <mailto:rizkhan@gmail.com>> wrote: Guys, Is this a stupid question or this just cannot be done? Any help will be highly appreciated. Thanks, Rizwan Khan On Mon, Nov 9, 2015 at 6:53 PM, Rizwan Khan &lt;rizkhan(a)gmail.com <mailto:rizkhan@gmail.com>> wrote: I want to remove the transport=TLS from the contact header. How can I do that inside Kamailio? The flow is an under: Client --------> Kamailio -------------> FS TLS UDP Client <-------- Kamailio <------------- FS TLS UDP FS gets a request on udp but it complains about TLS profile as the contact header has the transport=TLS. Since its receing traffic on UDP, if I only get rid of the value from the Contact Header, it would be great. Thanks, Rizwan Khan _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org <mailto:sr-users@lists.sip-router.org> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org <mailto:sr-users@lists.sip-router.org> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users