diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8aa84fa..69b30f5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 - Fix bug
 - Add setOneConversationBurnDuration method for ConversationManager
+- Add signalingSendCustomSignal method for SignalingManager
+- Add onReceiveCustomSignal listener for OnSignalingListener
 - Add burnDuration field for ConversationInfo
 - Add burnDuration field for AttachedInfoElem
 
diff --git a/android/build.gradle b/android/build.gradle
index a700d05..e737279 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -34,5 +34,5 @@ android {
     }
 }
 dependencies {
-    api 'io.openim:core-sdk:2.3.4-rc4@aar'
+    api 'io.openim:core-sdk:2.3.4-rc6@aar'
 }
\ No newline at end of file
diff --git a/android/src/main/java/io/openim/flutter_openim_sdk/listener/OnSignalingListener.java b/android/src/main/java/io/openim/flutter_openim_sdk/listener/OnSignalingListener.java
index 1ee2db5..b70384b 100644
--- a/android/src/main/java/io/openim/flutter_openim_sdk/listener/OnSignalingListener.java
+++ b/android/src/main/java/io/openim/flutter_openim_sdk/listener/OnSignalingListener.java
@@ -34,6 +34,11 @@ public class OnSignalingListener implements open_im_sdk_callback.OnSignalingList
         CommonUtil.emitEvent("signalingListener", "onInviteeRejectedByOtherDevice", s);
     }
 
+    @Override
+    public void onReceiveCustomSignal(String s) {
+        CommonUtil.emitEvent("signalingListener", "onReceiveCustomSignal", s);
+    }
+
     @Override
     public void onReceiveNewInvitation(String s) {
         CommonUtil.emitEvent("signalingListener", "onReceiveNewInvitation", s);
diff --git a/android/src/main/java/io/openim/flutter_openim_sdk/manager/SignalingManager.java b/android/src/main/java/io/openim/flutter_openim_sdk/manager/SignalingManager.java
index 0eb443c..9b691c6 100644
--- a/android/src/main/java/io/openim/flutter_openim_sdk/manager/SignalingManager.java
+++ b/android/src/main/java/io/openim/flutter_openim_sdk/manager/SignalingManager.java
@@ -114,4 +114,12 @@ public class SignalingManager extends BaseManager {
                 value(methodCall, "operationID"),
                 value(methodCall, "roomID"));
     }
+
+    public void signalingSendCustomSignal(MethodCall methodCall, MethodChannel.Result result) {
+        Open_im_sdk.signalingSendCustomSignal(
+                new OnBaseListener(result, methodCall),
+                value(methodCall, "operationID"),
+                value(methodCall, "customInfo"),
+                value(methodCall, "roomID"));
+    }
 }
diff --git a/example/pubspec.lock b/example/pubspec.lock
index 0eab6e1..a70a610 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -61,7 +61,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "2.3.4+1"
+    version: "2.3.4+5"
   flutter_test:
     dependency: "direct dev"
     description: flutter
diff --git a/ios/Classes/Module/ConversationManager.swift b/ios/Classes/Module/ConversationManager.swift
index 76e5286..e30d6d9 100644
--- a/ios/Classes/Module/ConversationManager.swift
+++ b/ios/Classes/Module/ConversationManager.swift
@@ -25,6 +25,7 @@ public class ConversationManager: BaseServiceManager {
         self["resetConversationGroupAtType"] = resetConversationGroupAtType
         self["getAtAllTag"] = getAtAllTag
         self["setGlobalRecvMessageOpt"] = setGlobalRecvMessageOpt
+        self["setOneConversationBurnDuration"] = setOneConversationBurnDuration
     }
     
     func setConversationListener(methodCall: FlutterMethodCall, result: @escaping FlutterResult){
@@ -108,6 +109,10 @@ public class ConversationManager: BaseServiceManager {
     func setGlobalRecvMessageOpt(methodCall: FlutterMethodCall, result: @escaping FlutterResult){
         Open_im_sdkSetGlobalRecvMessageOpt(BaseCallback(result: result), methodCall[string: "operationID"], methodCall[int: "status"])
     }
+    
+    func setOneConversationBurnDuration(methodCall: FlutterMethodCall, result: @escaping FlutterResult){
+        Open_im_sdkSetOneConversationBurnDuration(BaseCallback(result: result), methodCall[string: "operationID"], methodCall[string: "conversationID"], methodCall[int32: "burnDuration"])
+    }
 }
 
 
diff --git a/ios/Classes/Module/SignalingManager.swift b/ios/Classes/Module/SignalingManager.swift
index 71393e1..d5febff 100644
--- a/ios/Classes/Module/SignalingManager.swift
+++ b/ios/Classes/Module/SignalingManager.swift
@@ -20,6 +20,7 @@ public class SignalingManager: BaseServiceManager {
         self["signalingOperateStream"] = signalingOperateStream
         self["signalingGetMeetings"] = signalingGetMeetings
         self["signalingCloseRoom"] = signalingCloseRoom
+        self["signalingSendCustomSignal"] = signalingSendCustomSignal
     }
 
     func setSignalingListener(methodCall: FlutterMethodCall, result: @escaping FlutterResult){
@@ -82,8 +83,13 @@ public class SignalingManager: BaseServiceManager {
     func signalingCloseRoom(methodCall: FlutterMethodCall, result: @escaping FlutterResult){
         Open_im_sdkSignalingCloseRoom(BaseCallback(result: result), methodCall[string: "operationID"], methodCall[string: "roomID"])
     }
+    
+    func signalingSendCustomSignal(methodCall: FlutterMethodCall, result: @escaping FlutterResult){
+        Open_im_sdkSignalingSendCustomSignal(BaseCallback(result: result), methodCall[string: "operationID"], methodCall[string: "customInfo"], methodCall[string: "roomID"])
+    }
 }
 public class SignalingListener: NSObject, Open_im_sdk_callbackOnSignalingListenerProtocol {
+ 
   
     private let channel:FlutterMethodChannel
     
@@ -135,4 +141,8 @@ public class SignalingListener: NSObject, Open_im_sdk_callbackOnSignalingListene
         CommonUtil.emitEvent(channel: channel, method: "signalingListener", type: "onStreamChange", errCode: nil, errMsg: nil, data: s)
     }
     
+    public func onReceiveCustomSignal(_ s: String?) {
+        CommonUtil.emitEvent(channel: channel, method: "signalingListener", type: "onReceiveCustomSignal", errCode: nil, errMsg: nil, data: s)
+    }
+    
 }
diff --git a/lib/src/listener/signaling_listener.dart b/lib/src/listener/signaling_listener.dart
index aca9ebb..05d805b 100644
--- a/lib/src/listener/signaling_listener.dart
+++ b/lib/src/listener/signaling_listener.dart
@@ -13,6 +13,7 @@ class OnSignalingListener {
   final Function(RoomCallingInfo info)? onRoomParticipantConnected;
   final Function(RoomCallingInfo info)? onRoomParticipantDisconnected;
   final Function(MeetingStreamEvent event)? onMeetingStreamChanged;
+  final Function(CustomSignaling info)? onReceiveCustomSignal;
 
   OnSignalingListener({
     this.onInvitationCancelled,
@@ -26,6 +27,7 @@ class OnSignalingListener {
     this.onRoomParticipantConnected,
     this.onRoomParticipantDisconnected,
     this.onMeetingStreamChanged,
+    this.onReceiveCustomSignal,
   });
 
   /// 被邀请者收到：邀请者取消音视频通话
@@ -79,4 +81,8 @@ class OnSignalingListener {
   void streamChangedEvent(MeetingStreamEvent event) {
     onMeetingStreamChanged?.call(event);
   }
+
+  void receiveCustomSignal(CustomSignaling info) {
+    onReceiveCustomSignal?.call(info);
+  }
 }
diff --git a/lib/src/manager/im_manager.dart b/lib/src/manager/im_manager.dart
index 1c5b7de..663e6be 100644
--- a/lib/src/manager/im_manager.dart
+++ b/lib/src/manager/im_manager.dart
@@ -254,6 +254,9 @@ class IMManager {
               info =
                   Utils.toObj(data, (map) => MeetingStreamEvent.fromJson(map));
               break;
+            case 'onReceiveCustomSignal':
+              info = Utils.toObj(data, (map) => CustomSignaling.fromJson(map));
+              break;
             default:
               info = Utils.toObj(data, (map) => SignalingInfo.fromJson(map));
               break;
@@ -292,6 +295,9 @@ class IMManager {
             case 'onStreamChange':
               signalingManager.listener.streamChangedEvent(info);
               break;
+            case 'onReceiveCustomSignal':
+              signalingManager.listener.receiveCustomSignal(info);
+              break;
           }
         } else if (call.method == ListenerType.workMomentsListener) {
           String type = call.arguments['type'];
@@ -332,6 +338,7 @@ class IMManager {
     int logLevel = 6,
     String objectStorage = 'cos',
     String? encryptionKey,
+    bool enabledEncryption = false,
     String? operationID,
   }) {
     this._connectListener = listener;
@@ -347,6 +354,7 @@ class IMManager {
             "log_level": logLevel,
             "object_storage": objectStorage,
             "encryption_key": encryptionKey,
+            "is_need_encryption": enabledEncryption,
             "operationID": Utils.checkOperationID(operationID),
           },
         ));
diff --git a/lib/src/manager/im_message_manager.dart b/lib/src/manager/im_message_manager.dart
index 8033f8f..87cddaa 100644
--- a/lib/src/manager/im_message_manager.dart
+++ b/lib/src/manager/im_message_manager.dart
@@ -823,9 +823,9 @@ class MessageManager {
           .invokeMethod(
             'createImageMessageByURL',
             _buildParam({
-              'sourcePicture': sourcePicture,
-              'bigPicture': bigPicture,
-              'snapshotPicture': snapshotPicture,
+              'sourcePicture': sourcePicture.toJson(),
+              'bigPicture': bigPicture.toJson(),
+              'snapshotPicture': snapshotPicture.toJson(),
               "operationID": Utils.checkOperationID(operationID),
             }),
           )
@@ -840,7 +840,7 @@ class MessageManager {
           .invokeMethod(
             'createSoundMessageByURL',
             _buildParam({
-              'soundElem': soundElem,
+              'soundElem': soundElem.toJson(),
               "operationID": Utils.checkOperationID(operationID),
             }),
           )
@@ -855,7 +855,7 @@ class MessageManager {
           .invokeMethod(
               'createVideoMessageByURL',
               _buildParam({
-                'videoElem': videoElem,
+                'videoElem': videoElem.toJson(),
                 "operationID": Utils.checkOperationID(operationID),
               }))
           .then((value) => Utils.toObj(value, (map) => Message.fromJson(map)));
@@ -869,7 +869,7 @@ class MessageManager {
           .invokeMethod(
               'createFileMessageByURL',
               _buildParam({
-                'fileElem': fileElem,
+                'fileElem': fileElem.toJson(),
                 "operationID": Utils.checkOperationID(operationID),
               }))
           .then((value) => Utils.toObj(value, (map) => Message.fromJson(map)));
diff --git a/lib/src/manager/im_signaling_manager.dart b/lib/src/manager/im_signaling_manager.dart
index ce59f5f..534fb72 100644
--- a/lib/src/manager/im_signaling_manager.dart
+++ b/lib/src/manager/im_signaling_manager.dart
@@ -281,6 +281,22 @@ class SignalingManager {
             'operationID': Utils.checkOperationID(operationID),
           }));
 
+  /// 自定义信令
+  /// [roomID] 会议ID
+  /// [customInfo] 自定义信令
+  Future<dynamic> signalingSendCustomSignal({
+    required String roomID,
+    required String customInfo,
+    String? operationID,
+  }) =>
+      _channel.invokeMethod(
+          'signalingSendCustomSignal',
+          _buildParam({
+            'roomID': roomID,
+            'customInfo': customInfo,
+            'operationID': Utils.checkOperationID(operationID),
+          }));
+
   static Map _buildParam(Map param) {
     param["ManagerName"] = "signalingManager";
     return param;
diff --git a/lib/src/models/message.dart b/lib/src/models/message.dart
index 6ea4423..f178627 100644
--- a/lib/src/models/message.dart
+++ b/lib/src/models/message.dart
@@ -790,7 +790,8 @@ class AttachedInfoElem {
   /// 已读时间
   int? hasReadTime;
 
-  /// 私聊消息保留时长
+  /// 阅读时长 s
+  /// 即从hasReadTime时间算起，超过了burnDuration秒触发销毁
   int? burnDuration;
 
   /// 离线不发送推送
diff --git a/lib/src/models/signaling_info.dart b/lib/src/models/signaling_info.dart
index d0c4849..f2e4306 100644
--- a/lib/src/models/signaling_info.dart
+++ b/lib/src/models/signaling_info.dart
@@ -224,3 +224,22 @@ class Participant {
     return data;
   }
 }
+
+class CustomSignaling {
+  String? roomID;
+  String? customInfo;
+
+  CustomSignaling({this.roomID, this.customInfo});
+
+  CustomSignaling.fromJson(Map<String, dynamic> json) {
+    roomID = json['roomID'];
+    customInfo = json['customInfo'];
+  }
+
+  Map<String, dynamic> toJson() {
+    final data = Map<String, dynamic>();
+    data['roomID'] = roomID;
+    data['customInfo'] = customInfo;
+    return data;
+  }
+}