Hi Poquillon, Just fixed this in https://trac.pjsip.org/repos/ticket/1747. Note that the proposed fix seems to cause problem in the case of sending INVITE without SDP (so remote offer will be in 200/INVITE and local answer will be in ACK). Thanks for such detail report. BR, nanang On Thu, Jan 30, 2014 at 11:21 PM, Poquillon Bernard <bpoquillon at prosodie.com> wrote: > I am using pjsip 2.1.0. > > With RFC 4028, pjsip sends UPDATE periodically when it is a refresher. These > UPDATE are sent with an empty body (no SDP). My switch responds 200/OK with > a SDP. Pjsip considers this answer as an offer and the negotiator goes to > state WAIT_NEGO. But the negotiation is never done and when an UPDATE is > received with a SDP, pjsip refuses to consider it ("Invalid SDP offer/answer > state for UPDATE" is displayed) and in the same way, refuses to send an > UPDATE with a SDP. > > > > The workaround I found is, in sip_inv.c, to replace (line 1801) > > > > if (inv->neg == NULL) { > > status=pjmedia_sdp_neg_create_w_remote_offer(inv->pool, NULL, > > sdp_info->sdp, > > &inv->neg); > > } else { > > status=pjmedia_sdp_neg_set_remote_offer(inv->pool_prov, > inv->neg, > > sdp_info->sdp); > > } > > > > With > > > > if (inv->neg == NULL) { > > status=pjmedia_sdp_neg_create_w_remote_offer(inv->pool, NULL, > > sdp_info->sdp, > > &inv->neg); > > } else if (tsx->role == PJSIP_ROLE_UAC && > > rdata->msg_info.msg->line.status.code/100 == 2) { > > PJ_LOG(1,(inv->obj_name, "RLE=UAC status=200 Forget")); > > return PJ_SUCCESS; > > } else { > > status=pjmedia_sdp_neg_set_remote_offer(inv->pool_prov, > inv->neg, > > sdp_info->sdp); > > } > > > > The idea is to forget the SDP if it comes in a 200/OK and is considered as > an offer. But I am not sure there is no side effect. > > Thanks > > > > > _______________________________________________ > 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 >
