FS-9869 [mod_callcenter] Exporting cc_queue_joined_epoch when originating agent outbound leg

src/mod/applications/mod_callcenter/mod_callcenter.c

@@ -1616,6 +1616,7 @@ static void *SWITCH_THREAD_FUNC outbound_agent_thread_run(switch_thread_t *threa
 
 		switch_event_create(&ovars, SWITCH_EVENT_REQUEST_PARAMS);
 		switch_event_add_header(ovars, SWITCH_STACK_BOTTOM, "cc_queue", "%s", h->queue_name);
+		switch_event_add_header(ovars, SWITCH_STACK_BOTTOM, "cc_queue_joined_epoch", "%s", h->member_joined_epoch);
 		switch_event_add_header(ovars, SWITCH_STACK_BOTTOM, "cc_member_uuid", "%s", h->member_uuid);
 		switch_event_add_header(ovars, SWITCH_STACK_BOTTOM, "cc_member_session_uuid", "%s", h->member_session_uuid);
 		switch_event_add_header(ovars, SWITCH_STACK_BOTTOM, "cc_member_pre_answer_uuid", "%s", h->member_uuid);