diff --git a/src/interface/x.h b/src/interface/x.h
index fc466c8..634c187 100644
--- a/src/interface/x.h
+++ b/src/interface/x.h
@@ -80,7 +80,7 @@ typedef void (*OnReceiveBuffer)(const char*, size_t, const char*, const size_t,
 typedef void (*OnReceiveVideoFrame)(const XVideoFrame*, const char*,
                                     const size_t, void*);
 
-typedef void (*OnSignalStatus)(SignalStatus, void*);
+typedef void (*OnSignalStatus)(SignalStatus, const char*, const size_t, void*);
 
 typedef void (*OnConnectionStatus)(ConnectionStatus, const char*, const size_t,
                                    void*);
@@ -114,6 +114,8 @@ typedef struct {
   OnSignalStatus on_signal_status;
   OnConnectionStatus on_connection_status;
   NetStatusReport net_status_report;
+
+  const char* user_id;
   void* user_data;
 } Params;
 
@@ -121,7 +123,7 @@ DLLAPI PeerPtr* CreatePeer(const Params* params);
 
 DLLAPI void DestroyPeer(PeerPtr** peer_ptr);
 
-DLLAPI int Init(PeerPtr* peer_ptr, const char* user_id);
+DLLAPI int Init(PeerPtr* peer_ptr);
 
 DLLAPI int CreateConnection(PeerPtr* peer_ptr, const char* transmission_id,
                             const char* password);
diff --git a/src/pc/peer_connection.cpp b/src/pc/peer_connection.cpp
index 2cc1477..6543138 100644
--- a/src/pc/peer_connection.cpp
+++ b/src/pc/peer_connection.cpp
@@ -13,14 +13,13 @@ PeerConnection::PeerConnection() {}
 
 PeerConnection::~PeerConnection() { user_data_ = nullptr; }
 
-int PeerConnection::Init(PeerConnectionParams params,
-                         const std::string &user_id) {
+int PeerConnection::Init(PeerConnectionParams params) {
   if (inited_) {
     LOG_INFO("Peer already inited");
     return 0;
   }
   // Todo: checkout user_id unique or not
-  user_id_ = user_id;
+  user_id_ = params.user_id;
 
   if (params.use_cfg_file) {
     INIReader reader(params.cfg_path);
@@ -103,7 +102,8 @@ int PeerConnection::Init(PeerConnectionParams params,
     if (WsStatus::WsOpening == ws_status) {
       ws_status_ = WsStatus::WsOpening;
       signal_status_ = SignalStatus::SignalConnecting;
-      on_signal_status_(SignalStatus::SignalConnecting, user_data_);
+      on_signal_status_(SignalStatus::SignalConnecting, user_id_.data(),
+                        user_id_.size(), user_data_);
     } else if (WsStatus::WsOpened == ws_status) {
       ws_status_ = WsStatus::WsOpened;
       LOG_INFO("Login to signal server");
@@ -111,19 +111,23 @@ int PeerConnection::Init(PeerConnectionParams params,
     } else if (WsStatus::WsFailed == ws_status) {
       ws_status_ = WsStatus::WsFailed;
       signal_status_ = SignalStatus::SignalFailed;
-      on_signal_status_(SignalStatus::SignalFailed, user_data_);
+      on_signal_status_(SignalStatus::SignalFailed, user_id_.data(),
+                        user_id_.size(), user_data_);
     } else if (WsStatus::WsClosed == ws_status) {
       ws_status_ = WsStatus::WsClosed;
       signal_status_ = SignalStatus::SignalClosed;
-      on_signal_status_(SignalStatus::SignalClosed, user_data_);
+      on_signal_status_(SignalStatus::SignalClosed, user_id_.data(),
+                        user_id_.size(), user_data_);
     } else if (WsStatus::WsReconnecting == ws_status) {
       ws_status_ = WsStatus::WsReconnecting;
       signal_status_ = SignalStatus::SignalReconnecting;
-      on_signal_status_(SignalStatus::SignalReconnecting, user_data_);
+      on_signal_status_(SignalStatus::SignalReconnecting, user_id_.data(),
+                        user_id_.size(), user_data_);
     } else if (WsStatus::WsServerClosed == ws_status) {
       ws_status_ = WsStatus::WsServerClosed;
       signal_status_ = SignalStatus::SignalServerClosed;
-      on_signal_status_(SignalStatus::SignalServerClosed, user_data_);
+      on_signal_status_(SignalStatus::SignalServerClosed, user_id_.data(),
+                        user_id_.size(), user_data_);
     }
   };
 
@@ -196,7 +200,7 @@ int PeerConnection::Init(PeerConnectionParams params,
   // do {
   // } while (SignalStatus::SignalConnected != GetSignalStatus());
 
-  LOG_INFO("[{}] Init finish", user_id);
+  LOG_INFO("[{}] Init finish", user_id_);
 
   inited_ = true;
   return 0;
@@ -414,7 +418,8 @@ void PeerConnection::ProcessSignal(const std::string &signal) {
                            user_id_.data(), user_id_.size(), user_data_);
         LOG_INFO("Login success with id [{}]", user_id_);
         signal_status_ = SignalStatus::SignalConnected;
-        on_signal_status_(SignalStatus::SignalConnected, user_data_);
+        on_signal_status_(SignalStatus::SignalConnected, user_id_.data(),
+                          user_id_.size(), user_data_);
       } else if (j["status"].get<std::string>() == "fail") {
         LOG_WARN("Login failed with id [{}]", user_id_);
       }
diff --git a/src/pc/peer_connection.h b/src/pc/peer_connection.h
index bd3c19b..7edea74 100644
--- a/src/pc/peer_connection.h
+++ b/src/pc/peer_connection.h
@@ -26,7 +26,8 @@ typedef void (*OnReceiveBuffer)(const char *, size_t, const char *,
 typedef void (*OnReceiveVideoFrame)(const XVideoFrame *video_frame,
                                     const char *, const size_t, void *);
 
-typedef void (*OnSignalStatus)(SignalStatus, void *);
+typedef void (*OnSignalStatus)(SignalStatus, const char *, const size_t,
+                               void *);
 
 typedef void (*OnConnectionStatus)(ConnectionStatus, const char *, const size_t,
                                    void *);
@@ -60,6 +61,8 @@ typedef struct {
   OnSignalStatus on_signal_status;
   OnConnectionStatus on_connection_status;
   NetStatusReport net_status_report;
+
+  const char *user_id;
   void *user_data;
 } PeerConnectionParams;
 
@@ -88,7 +91,7 @@ class PeerConnection {
   ~PeerConnection();
 
  public:
-  int Init(PeerConnectionParams params, const std::string &user_id);
+  int Init(PeerConnectionParams params);
 
   int Create(const std::string &transmission_id = "",
              const std::string &password = "");
diff --git a/src/rtc/x_inner.cpp b/src/rtc/x_inner.cpp
index 6f9eaae..ecf2cbb 100644
--- a/src/rtc/x_inner.cpp
+++ b/src/rtc/x_inner.cpp
@@ -38,6 +38,8 @@ PeerPtr *CreatePeer(const Params *params) {
   peer_ptr->pc_params.on_signal_status = params->on_signal_status;
   peer_ptr->pc_params.on_connection_status = params->on_connection_status;
   peer_ptr->pc_params.net_status_report = params->net_status_report;
+
+  peer_ptr->pc_params.user_id = params->user_id;
   peer_ptr->pc_params.user_data = params->user_data;
 
   return peer_ptr;
@@ -51,13 +53,13 @@ void DestroyPeer(PeerPtr **peer_ptr) {
   *peer_ptr = nullptr;
 }
 
-int Init(PeerPtr *peer_ptr, const char *user_id) {
+int Init(PeerPtr *peer_ptr) {
   if (!peer_ptr || !peer_ptr->peer_connection) {
     LOG_ERROR("Peer connection not created");
     return -1;
   }
 
-  peer_ptr->peer_connection->Init(peer_ptr->pc_params, user_id);
+  peer_ptr->peer_connection->Init(peer_ptr->pc_params);
   return 0;
 }