To simplify, the problem seems to come down to the following: how do you cancel/end an early state dialog between the caller and callee after `fr_inv_timeout` occurs? Kam self-generates a proper CANCEL towards the callee, while the caller gets a `408 Request Timeout' with a different To-tag.
I've tried: dlg_bye("all") - throws an error, non-confirmed dialogs can't be terminated with this function t_cancel_callid("$dlg(callid)", "$dlg(from_cseq)", "22", "200") - doesn't seem to produce any action Suggestions? On Sat, Apr 6, 2019 at 11:25 AM Sergiu Pojoga <pojo...@gmail.com> wrote: > Hi ppl, > > Scenario: invite from upstream is t_relayed to a client gateway. After > `fr_inv_timeout` occurs, in a failure route I simply t_reply with "503 - > Service unavailable", then exit(). > > However, the upstream provider simply ignores this reply, call doesn't > hang up. This doesn't happen when the client's gateway generates identical > 503 or other negative replies. > > I suspect this is happening because the To-tag in the Kam generated 503 > reply doesn't match with the To-tag that previously was forwarded from the > client's gateway to the upstream provider in the `180 Ringing`. > > Any suggestions what can be done about it? > > > 2019/04/06 10:42:46.127177 65.39.xxx.xxx:5060 -> 208.72.xxx.xxx:5060 > > > SIP/2.0 180 Ringing > > > > Via: SIP/2.0/UDP > 208.72.xxx.xxx:5060;received=208.72.xxx.xxx;rport=5060;branch=z9hG4bK1982422573 > > > Record-Route: <sip:65.39.xxx.xxx;lr=on;did=915.8af1> > > > > From: "SERGIU" <sip:514xxxx...@208.72.xxx.xxx>;isup-oli=00;tag=1975755942 > > > To: <sip:514xxxx...@65.39.xxx.xxx>;tag=as2ab54180 > > > > Call-ID: did-28270...@208.72.xxx.xx > > > > CSeq: 477023 INVITE > > > > Supported: replaces, timer, path > > > > Contact: <sip:1514xxxx...@65.39.xxx.xxx:5060> > > > > Content-Length: 0 > > > > > > > > > > > > 2019/04/06 10:42:51.072516 65.39.xxx.xxx:5060 -> 208.72.xxx.xxx:5060 > > > SIP/2.0 503 Service Unavailable > > > > Call-ID: did-28270...@208.72.xxx.xx > > > > Via: SIP/2.0/UDP > 208.72.xxx.xxx:5060;rport=5060;branch=z9hG4bK1982422573;received=208.72.xxx.xxx > > > From: "SERGIU" <sip:514xxxx...@208.72.xxx.xxx>;isup-oli=00;tag=1975755942 > > > To: <sip:514xxxx...@65.39.xxx.xxx>;tag= > a6a1c5f60faecf035a1ae5b6e96e979a-8e82 > > > CSeq: 477023 INVITE > > > > Server: KAM > > > > Content-Length: 0 > > Thanks, > --Sergiu >
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