Failure route doesn't handle replies It handles requests to be which must be processed one more time if >299 reply received
On Tue, 26 Sept 2023, 19:13 sadik.oualla.mohamed--- via sr-users, < [email protected]> wrote: > Hello Kamailio Community, > > I'm currently working on a project that involves complex SIP routing and > handling. I've encountered some difficulties while using > change_reply_status, and append_hf functions in failure_route route in > Kamailio. Although the documentation does provide guidance, the behaviors I > am experiencing aren't aligning with the expected outcomes. > > Issue 1: failure_route > I've set up a failure_route to handle specific SIP response codes (>4xx). > However, I've observed that it get trigered and lunched, but I can't use > change_reply_status or append_hf, I was using this first in onreply_route. > > Issue 2: change_reply_status > I tried to use the change_reply_status function to modify the status of > SIP replies, but it raises an error that this command cannot be executed > here. > > Issue 3: append_hf > I've also attempted to use append_hf in my failure_route block to add > headers to replies, but the headers are not being added as expected. > > As a workaround, I've been using send_reply and append_to_reply for adding > custom headers, and they seem to be working as expected. However, I found > some old messages in kamailio mailing list, I can summerize what I learned > like this ``` > #Functions and Context > - append_hf(): Adds a header to the currently processed SIP message. If > you are in a route {...} block, then this adds the header to the request. > If you are in an onreply_route, it adds the header to the reply. This > function always acts on the message currently under scrutiny. > > - append_to_reply(): This function is used to add a header to a reply that > will be generated by Kamailio at a later time. This function only affects > replies generated by Kamailio itself and is not applicable for messages > that are simply being forwarded. > > #Contexts > - route {...}: This is typically where the incoming SIP request gets > processed. Here, append_hf() will add headers to that request, and > append_to_reply() will add headers to any replies that Kamailio might > generate for this request. > > - onreply_route: This is where incoming SIP replies are processed. Here, > append_hf() will act on the reply, not the request. > ``` I'd like to know if there is a way to handle sip replies in > failure_route, because send_reply make a new reply from kamailio, instead I > want to keep some important headers from the original reply. > > I'd appreciate any insights or guidance the community can offer. > > > > Best regards, > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions > To unsubscribe send an email to [email protected] > Important: keep the mailing list in the recipients, do not reply only to > the sender! > Edit mailing list options or unsubscribe: >
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