Hello All, I have some problem with receiving and handling ESL events. My code is like: void handle_eslswitch_event_plain(esl_handle_t *handle, esl_event_t *event) { ... ... TRACE_DEBUG("ESL event [%d] %s: UUID: %s", event->event_id, fs_get_event_header(event, "Event-Name"), uniqueid); print_event(event); ... ... } void handle_event(esl_handle_t *handle, esl_event_t *last_event) { ... ... if (!strcasecmp(type, "text/event-plain")) { handle_eslswitch_event_plain(handle, handle->last_ievent); } ... ... } int main() { ... ... //receive from event socket if (handle.last_event) handle_event(&handle, handle.last_event); ... ... Usually I receive correct events. But I occasionally receive incorrect event. See below the 1st is the normal event and the 2nd is the wrong event: <2011-07-29 14:25:29> [DEBUG] ESL event [8] CHANNEL_HANGUP_COMPLETE: UUID: f320e4a6-db23-46d0-8d89-9957eccbd4c9 <2011-07-29 14:25:29> [DEBUG] RECV EVENT Event-Name: CHANNEL_HANGUP_COMPLETE Core-UUID: 26b77cba-8fdd-486d-90ec-6844bca58c72 FreeSWITCH-Hostname: fs01 FreeSWITCH-IPv4: 10.1.1.46 FreeSWITCH-IPv6: ::1 Event-Date-Local: 2011-07-29 14:25:29 However, usually after failure in executing "hangup" and getting "-ERR ..." in the event->last_sr_reply, I have wrong event, but not always (an -ERR returned from executing "hangup" doesn't always result in a wrong event). Here it is: <2011-07-29 14:25:29> [NOTICE] -ERR invalid session id [f320e4a6-db23-46d0-8d89-9957eccbd4c9] <2011-07-28 15:55:23> [DEBUG] ESL event [0] : UUID: <2011-07-28 15:55:23> [DEBUG] RECV EVENT Content-Length: 6485 Content-Type: text/event-plain Event-Name: CHANNEL_HANGUP Core-UUID: 26b77cba-8fdd-486d-90ec-6844bca58c72 FreeSWITCH-Hostname: fs01 FreeSWITCH-IPv4: 10.1.1.46 FreeSWITCH-IPv6: %3A%3A1 Event-Date-Local: 2011-07-28%2015%3A55%3A23 In the above case, both Event ID and UUID are invalid. I think i need more information regarding how to use the data elements in ESL event, especially how to use the following: char last_reply[1024]; /*! Las command reply when called with esl_send_recv */ char last_sr_reply[1024]; /*! Last event received. Only populated when **save_event is NULL */ esl_event_t *last_event; /*! Last event received when called by esl_send_recv */ esl_event_t *last_sr_event; /*! This will hold already processed events queued by esl_recv_event */ esl_event_t *race_event; /*! Events that have content-type == text/plain and a body */ esl_event_t *last_ievent; My questions, what event should I check if I am interested in only channel/call related events, and how? Do I check handle.last_event, or handle.last_ievent, or what? Please kindly advice. Thanks, D.Ma