Hi I have following situation: I registered Call-Back for "change state registration" as: pjsua_config cfg; ... cfg.cb.on_reg_state = &on_registration_state; ... When calling unregister method as: pjsua_acc_set_registration( d->acc_id, PJ_FALSE ); and Call-Back method on_registration_state occured i call inside method: pjsua_acc_get_info() but "pjsua_acc_info.status" is still 200. in documentation is: *************************************************** pjsip_status_code pjsua_acc_info::status Last registration status code. If status code is zero, the account is currently not registered. Any other value indicates the SIP status code of the registration. *************************************************** I want handle event when user unregister his account and i want to make by variable "status" in "pjsua_acc_info" struct. but it seems there is a bug..or it's bad idea? code and logs: void Sip::on_registration_state( pjsua_acc_id acc_id ) { pj_status_t status; pjsua_acc_info info ; status = pjsua_acc_get_info(acc_id, &info); if (status == PJ_SUCCESS) { PJ_LOG(3,("Sip", "acc info id=%d", info.id)); PJ_LOG(3,("Sip", "acc info uri=%s", info.acc_uri)); PJ_LOG(3,("Sip", "acc info has_registration=%d", info.has_registration)); PJ_LOG(3,("Sip", "acc info expires=%d", info.expires)); PJ_LOG(3,("Sip", "acc info status=%d", info.status)); PJ_LOG(3,("Sip", "acc info status_text=%s", info.status_text)); PJ_LOG(3,("Sip", "acc info online_status=%d", info.online_status)); PJ_LOG(3,("Sip", "acc info online_status_text=%s", info.online_status_text)); } } register account 11:54:19.468 pjsua_acc.c Account sip:pc4 at 192.168.10.123 added with id 0 11:54:19.468 pjsua_acc.c Registration sent 11:54:19.468 pjsua_acc.c sip:pc4 at 192.168.10.123: registration success, status=200 (OK), will re-register in 300 seconds 11:54:19.468 pjsua_acc.c Keep-alive timer started for acc 0, destination:192.168.10.123:5060, interval:15s 11:54:19.468 Sip acc info id=0 11:54:19.468 Sip acc info uri=sip:pc4 at 192.168.10.123 11:54:19.468 Sip acc info has_registration=1 11:54:19.468 Sip acc info expires=295 11:54:19.468 Sip acc info status=200 11:54:19.468 Sip acc info status_text=OK 11:54:19.468 Sip acc info online_status=0 11:54:19.468 Sip acc info online_status_text=Offline unregister account 11:54:35.390 pjsua_acc.c Unregistration sent 11:54:35.390 pjsua_acc.c sip:pc4 at 192.168.10.123: unregistration success 11:54:35.390 Sip acc info id=0 11:54:35.390 Sip acc info uri=sip:pc4 at 192.168.10.123 11:54:35.390 Sip acc info has_registration=1 11:54:35.390 Sip acc info expires=-1 11:54:35.390 Sip acc info status=200 11:54:35.390 Sip acc info status_text=OK 11:54:35.390 Sip acc info online_status=0 11:54:35.390 Sip acc info online_status_text=Offline "Sip acc info status=200" is still 200. ...thanks