Hello Rados ! Thank you for your reply. This problem is very strange. Actually, I have tried and tested your "tricky" solution which consists to send a second registration request (with the method pjsua_acc_set_registration(acc_id, PJ_TRUE) ) few seconds after the initial REGISTER request send by pjsua_acc_add(&acc_cfg, PJ_TRUE, &acc_id). How many second do you wait before sending the second REGISTER ? Sometimes, I wait 3 seconds and it works and sometimes I must waiting more because the response has always 2 bindings. This "tricky wait time" depends of which parameter(s) ? If I have more times, I will work on a better way to fix this problem. Do you have finding a better solution ? thanks a lot. cyrill gremaud On Jul 17, 2013, at 9:48 PM, <pjsip-request at lists.pjsip.org> wrote: > Send pjsip mailing list submissions to > pjsip at lists.pjsip.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > or, via email, send a message with subject or body 'help' to > pjsip-request at lists.pjsip.org > > You can reach the person managing the list at > pjsip-owner at lists.pjsip.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of pjsip digest..." > > > Today's Topics: > > 1. Re: Status 403 - You must register with a S-CSCF first > (Rados?aw Szalski) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 17 Jul 2013 21:48:14 +0200 > From: Rados?aw Szalski <radoslaw.szalski@xxxxxxxxx> > To: pjsip list <pjsip at lists.pjsip.org> > Subject: Re: Status 403 - You must register with a S-CSCF > first > Message-ID: > <CAFEhLu9kOYSyQdJXdPMiztNHpdKfmeG-q4NQUPn+k46xgZi2jw at mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Hi! > > I have exactly the same problem as you have. Here is my entry for > reference: > http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2013-May/016297.html. > Wasn't 100% sure it was a NAT problem back then. > > > Unfortunately I haven't found a reliable solution yet . Indeed, a second > registration works correctly (notice that the second time, only 1 Contact > header is included in REGISTER request and it has the correct, external IP > address). That's the only lead I have atm. > > My current workaround is to send, after few seconds after the first, a > second REGISTER request using: > http://www.pjsip.org/pjsip/docs/html/group__PJSUA__LIB__ACC.htm#ga487960dea58d628d92fe4c9a083813de > > I am working on sending a the modified REGISTER request, containing only > the correct Contact header. It involves initializing a REGC structure, > setting up the headers and sending the request. This is possible after the > first registration when we know our external IP address as reported by the > IMS. Registering for the first time then immediately un-registering and > then sending a correct REGISTER request would eliminate the "magic" waiting > I mentioned before. > > I also think that the culprit might be the OpenIMSCore itself. I haven't > had time to dig through its configuration options and check them all > though. What I did test was > http://www.pjsip.org/pjsip/docs/html/structpjsua__acc__config.htm#a73b69a3a8d225147ce386e310e588285 > setting > on 1 (legacy) - sends 2 simultaneous REGISTER requests instead of one with > 2 Contacts. It does not work unfortunately. IMS responds with "Unable to > Comply" and its database has to be reset. > > > Please let me/us know when you find a solution. I will report back with my > finding after I debug some more. > > > > 2013/7/17 Gremaud Cyrill <cyrill.gremaud at hefr.ch> > >> Hello everybody, >> >> I'm trying to create a simple console application with PJSIP through an >> OpenIMSCore which allow Bob and Alice to communication with SIP Message >> (IM). >> >> When I start my application (one for Bob, one for Alice) on my computer, >> the registration is successful with the OpenIMSCore using the AKAv1-MD5 >> authentication and I can send SIP message between Bob and alice. >> >> But if I start my application from a computer which is behind a NAT >> (simple CISCO NAT overload), I have 2 Register request per application (one >> for the private interface and another one for the public). >> >> The first Register request is for the private interface and the response >> (after the challenge) is 200 OK with a "expires = 300. >> The second Register request is for the public interface and the response >> (after the challenge) is 200 OK with a expires = 300 BUT the expire for the >> private is now a 0. (Wireshark says that there are 2 bindings) >> >> So, after that, I can't send IM message and I have the message "Status 403 >> - You must register with a S-CSCF first". >> >> After 5 minutes, a new Register request is automatically send for the >> PUBLIC interface only and after the challenge I have the 200 OK with a >> expire = 300 and I have only 1 binding now and I can send IM message. >> >> Can you help me please ? I have search a lot but with no results. Thanks a >> lot >> >> cyrill gremaud >> _______________________________________________ >> Visit our blog: http://blog.pjsip.org >> >> pjsip mailing list >> pjsip at lists.pjsip.org >> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >> > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20130717/c7d0ee2c/attachment.html> > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > > > ------------------------------ > > End of pjsip Digest, Vol 71, Issue 86 > *************************************