Hi Daniel, Thank for your answering. yes, I'm really need to add some parameters to the top most via header. But I only want to add to the outgoing RESPONSE message. I don't want to add to the REQUEST message. how can i do that?
On Mon, Jul 4, 2016 at 5:35 PM, Daniel-Constantin Mierla <mico...@gmail.com> wrote: > Hello, > > do you really need them in the Via header? > > It is abit delicate to work with, because some UA may be strict in what > they receive, given that the Via was added by them. There are standard > parameters that should be added such as received or rport, which are added > by kamailio automatically if the conditions required by them are met. > > Maybe you can get what you need by adding a header instead -- a header can > be added to the reply using append_to_reply() function exported by textops > module. > > Otherwise, here are the steps that you can try to add to the Via header: > > 1) use functions from textops or textops module to update the Via header > of the incoming request (inside request_route block), such as: > > * > https://www.kamailio.org/docs/modules/stable/modules/textops.html#textops.f.subst_hf > * > https://www.kamailio.org/docs/modules/stable/modules/textopsx.html#textopsx.f.insert_hf_value > > 2) do msg_apply_changes() > > From that moment Kamailio will see the new Via header, with the changes > you did. When building a reply, Kamailio should use the entire Via header > and you parameter should be visible in the reply. > > Cheers, > Daniel > On 04/07/16 03:45, Huynh Quoc Bao wrote: > > Hi all, > > Could someone give me some suggestion? Thank in advance. > > Brs/Bao > > On Fri, Jul 1, 2016 at 3:31 PM, Huynh Quoc Bao <baohq...@gmail.com> wrote: > >> Hi all, >> >> As title, i want to add some additional parameters to the topmost via >> header in replied message. >> example. REGISTER ==> Kamailio ===> reply 200 OK. So in 200 OK message, i >> will add some additional parameters. >> And the same for the other message: INVITE, SUBSCRIBE, NOTIFY, MESSAGE >> message. >> >> -- >> Brs/Bao >> > > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing > listsr-us...@lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > > -- > Daniel-Constantin Mierlahttp://www.asipto.com - > http://www.kamailio.orghttp://twitter.com/#!/miconda - > http://www.linkedin.com/in/miconda > >
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