Hi, it's called early media, so the PBX/C5 Softswitch has to return a "183" status as stated in the RFC. Draft: https://tools.ietf.org/html/draft-rosenberg-sip-early-media-00 So, the call state confirmed is the thing you're searching for. Snippet to demonstrate the "confirmed" state: (on_call_state callback using pjsua). Callback: https://www.pjsip.org/pjsip/docs/html/structpjsua__callback.htm#a8029ac58404a39067691a1530a2b585a Snippet taken from my call quality check program, where the wav file starts when the call has been confirmed: /* * Handler when invite state has changed. */ void on_call_state(pjsua_call_id call_id, pjsip_event *e) { pjsua_call_info call_info; pj_status_t status; PJ_UNUSED_ARG(e); pjsua_call_get_info(call_id, &call_info); if (call_info.state == PJSIP_INV_STATE_CONFIRMED) { if ( pj_stristr(&call_info.remote_info, &app_config.remote_contact) != NULL ) { status = pjsua_conf_connect(app_config.wav_conf_port_id, call_info.conf_slot); if (status != PJ_SUCCESS) program_exit("Error connecting wave port to call slot", status, CRITICAL); } } Hope that helps. Best regards Franz ________________________________________ Von: pjsip <pjsip-bounces@xxxxxxxxxxxxxxx> im Auftrag von Andreas Wehrmann <a.wehrmann@xxxxxxxxxx> Gesendet: Mittwoch, 18. Dezember 2019 17:20 An: pjsip@xxxxxxxxxxxxxxx Betreff: Re: Detecting callee pickup On 18.12.19 16:54, Martin Schmid via pjsip wrote: > Hello everybody > > I'm seraching for a solution to detect the callee pickup. > The 'confirmed' arrives at a very early stage, long before the callee > picks up the phone. > Is there a way to detect the pickup? I don't see much in the callInfo. > > Regards, > > Martin Are you calling through a PBX? They sometimes accept calls immediately and play some kind of music-on-hold in which case you're not able to directly find out when the actual party you're trying to reach picks up. All the best, Andreas _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip@xxxxxxxxxxxxxxx http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip@xxxxxxxxxxxxxxx http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org