To be sure I understand properly: do they require to send a CANCEL back to them for calls that they initiate with the first INVITE and do not get 200ok, but 3xx/4xx/5xx?
Cheers, Daniel On 08.04.19 17:34, Sergiu Pojoga wrote: > Looks like it's going to be another battle with a Metaswitch-based > carrier... so far they are telling me 'we can't do anything about it. > Send us a CANCEL to tear down the call` > > I know this is a `another story` question, but if I had to overcome > this, would *uac_req_send() *be my only option? > > Thanks again, > --Sergiu > > On Mon, Apr 8, 2019 at 2:15 AM Daniel-Constantin Mierla > <[email protected] <mailto:[email protected]>> wrote: > > > On 07.04.19 15:40, Sergiu Pojoga wrote: >> 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. > > That's all required not to have a dialog completed, but faild. > There is no need to send a BYE or another CANCEL. The INVITE got > the 408, not 200. > > Cheers, > Daniel > >> >> 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 <[email protected] >> <mailto:[email protected]>> 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:[email protected]>;isup-oli=00;tag=1975755942 >> >> >> To: <sip:[email protected]>;tag=as2ab54180 >> >> >> >> Call-ID: [email protected] >> <mailto:[email protected]> >> >> >> >> CSeq: 477023 INVITE >> >> >> >> Supported: replaces, timer, path >> >> >> >> Contact: <sip:[email protected]: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: [email protected] >> <mailto:[email protected]> >> >> >> >> Via: SIP/2.0/UDP >> >> 208.72.xxx.xxx:5060;rport=5060;branch=z9hG4bK1982422573;received=208.72.xxx.xxx >> >> >> >> From: "SERGIU" >> <sip:[email protected]>;isup-oli=00;tag=1975755942 >> >> >> To: >> >> <sip:[email protected]>;tag=a6a1c5f60faecf035a1ae5b6e96e979a-8e82 >> >> >> >> CSeq: 477023 INVITE >> >> >> >> Server: KAM >> >> >> >> Content-Length: 0 >> >> Thanks, >> --Sergiu >> >> >> _______________________________________________ >> Kamailio (SER) - Users Mailing List >> [email protected] <mailto:[email protected]> >> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > > -- > Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com> > www.twitter.com/miconda <http://www.twitter.com/miconda> -- > www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda> > Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com > <http://www.kamailioworld.com> > > > _______________________________________________ > Kamailio (SER) - Users Mailing List > [email protected] > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com
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