diff --git a/src/decoder/gb28181/sip/SipServer.cpp b/src/decoder/gb28181/sip/SipServer.cpp
index 835f08f..8220292 100644
--- a/src/decoder/gb28181/sip/SipServer.cpp
+++ b/src/decoder/gb28181/sip/SipServer.cpp
@@ -17,6 +17,7 @@
 #include "./Utils/HTTPDigest.h"
 
 #include <sstream>
+#include <algorithm>
 
 using namespace std;
 
@@ -30,6 +31,16 @@ static void event_loop_thread(void* arg) {
     }
 }
 
+static void timing_getcatlog_thread(void* arg) {
+    SipServer* _this = (SipServer*)arg;
+    if (_this != nullptr) {
+        _this->timing_getcatlog();
+    }
+    else {
+        LOG_ERROR("event_loop线程启动失败 !");
+    }
+}
+
 static void dt_printSipMsg(osip_message_t* msg) {
     osip_message_t* clone_event = NULL;
     size_t length = 0;
@@ -39,6 +50,17 @@ static void dt_printSipMsg(osip_message_t* msg) {
     LOG_INFO("{}", message);
 }
 
+static bool isntspace(const char &ch) {
+    return !isspace(ch);
+}
+
+static std::string trim(const std::string &s) {
+    std::string::const_iterator iter1 = find_if(s.begin(), s.end(), isntspace);
+    std::string::const_iterator iter2 = find_if(s.rbegin(), s.rend(), isntspace).base();
+
+    return iter1 < iter2 ? string(iter1, iter2) : std::string("");
+}
+
 SipServer::SipServer():
         mQuit(false),
         mSipCtx(nullptr){
@@ -83,7 +105,7 @@ int SipServer::sip_event_handle(eXosip_event_t *evtp) {
 
     switch(evtp->type) {
         case EXOSIP_CALL_MESSAGE_NEW://14
-            LOG_INFO("EXOSIP_CALL_MESSAGE_NEW type={}", evtp->type);
+            // LOG_INFO("EXOSIP_CALL_MESSAGE_NEW type={}", evtp->type);
             this->dump_request(evtp);
             this->dump_response(evtp);
             break;
@@ -111,7 +133,7 @@ int SipServer::sip_event_handle(eXosip_event_t *evtp) {
                 this->response_message(evtp);
             }
             else if(MSG_IS_BYE(evtp->request)){
-                LOG_ERROR("unknown1");
+                LOG_ERROR("BYE");
             }
             else{
                 LOG_ERROR("unknown2");
@@ -195,6 +217,18 @@ void SipServer::event_loop() {
     }
 }
 
+void SipServer::close() {
+    mQuit = true;
+}
+
+void SipServer::timing_getcatlog() {
+    while(!mQuit) {
+        // 5分钟更新一次
+        std::this_thread::sleep_for(std::chrono::minutes(5));
+        cacheCatalog();
+    }
+}
+
 void SipServer::response_message_answer(eXosip_event_t *evtp,int code){
 
     int returnCode = 0 ;
@@ -217,7 +251,6 @@ void SipServer::response_message_answer(eXosip_event_t *evtp,int code){
 }
 void SipServer::response_register(eXosip_event_t *evtp) {
 
-
     osip_authorization_t * auth = nullptr;
     osip_message_get_authorization(evtp->request, 0, &auth);
 
@@ -355,7 +388,22 @@ void SipServer::response_message(eXosip_event_t *evtp) {
     }else{
         this->response_message_answer(evtp,200);
     }
+}
 
+bool SipServer::check_device_status(string id) {
+    auto it_info = m_device_map.find(id);
+    if (it_info == m_device_map.end()) {
+        return false;
+    }
+
+    string status = trim(it_info->second.status);
+    // status = std::tolower(status.c_str());
+    transform(status.begin(), status.end(), status.begin(),::tolower);
+    if (status == "on"){
+        return true;
+    }
+    
+    return false;
 }
 
 Client* SipServer::get_parent_by_id(string id) {
@@ -394,8 +442,9 @@ int SipServer::request_bye(eXosip_event_t* evtp) {
 
 int SipServer::RequestInvite_UDP(const char* dst_channel, int rtpPort) {
 
-    if (mClientMap.size() <= 0){
-        return -1;
+    // 检查设备是否在线
+    if (!check_device_status(dst_channel)) {
+        return -2;
     }
 
     Client* client = get_parent_by_id(dst_channel);
@@ -453,8 +502,9 @@ int SipServer::RequestInvite_UDP(const char* dst_channel, int rtpPort) {
 }
 
 int SipServer::RequestInvite_TCP_a(const char* dst_channel, int rtpPort) {
-    if (mClientMap.size() <= 0){
-        return -1;
+    // 检查设备是否在线
+    if (!check_device_status(dst_channel)) {
+        return -2;
     }
 
     Client* client = get_parent_by_id(dst_channel);
diff --git a/src/decoder/gb28181/sip/SipServer.h b/src/decoder/gb28181/sip/SipServer.h
index 72996d0..71a0daf 100644
--- a/src/decoder/gb28181/sip/SipServer.h
+++ b/src/decoder/gb28181/sip/SipServer.h
@@ -134,16 +134,18 @@ public:
 
     int RequestInvite_TCP_a(const char* dst_channel, int rtpPort);
 
-    void cacheCatalog();
+    void close();
 
 public:
     void event_loop();
+    void timing_getcatlog();
 
 private:
     int init_sip_server();
     int sip_event_handle(eXosip_event_t *evtp);
 
     void RequestCatalog(Client* client);
+    void cacheCatalog();
 
     void response_message_answer(eXosip_event_t *evtp,int code);
     void response_register(eXosip_event_t *evtp);
@@ -159,6 +161,7 @@ private:
     void deleteClientByDevice(string device);
 
     Client* get_parent_by_id(string id);
+    bool check_device_status(string id);
 
 private:
     bool mQuit{ false };