diff --git a/electron-projects/ucap-webmessenger-electron/src/index.ts b/electron-projects/ucap-webmessenger-electron/src/index.ts
index 334a3c3d..28aad24a 100644
--- a/electron-projects/ucap-webmessenger-electron/src/index.ts
+++ b/electron-projects/ucap-webmessenger-electron/src/index.ts
@@ -15,7 +15,8 @@ import {
   IdleStateChannel,
   NotificationChannel,
   ChatChannel,
-  MessengerChannel
+  MessengerChannel,
+  MessageChannel
 } from '@ucap-webmessenger/native-electron';
 import { ElectronNotificationService } from '@ucap-webmessenger/electron-notification';
 import { ElectronUpdateWindowService } from '@ucap-webmessenger/electron-update-window';
@@ -27,7 +28,8 @@ import { FileUtil } from './lib/file-util';
 import { IdleChecker } from './lib/idle-checker';
 import {
   NotificationRequest,
-  UpdateCheckConfig
+  UpdateCheckConfig,
+  NotificationType
 } from '@ucap-webmessenger/native';
 import { ElectronAppChannel } from '@ucap-webmessenger/electron-core';
 
@@ -513,10 +515,17 @@ ipcMain.on(
         : '',
       onClick: e => {
         appWindow.browserWindow.flashFrame(false);
-        appWindow.browserWindow.webContents.send(
-          ChatChannel.OpenRoom,
-          noti.roomSeq
-        );
+        if (noti.type === NotificationType.Event) {
+          appWindow.browserWindow.webContents.send(
+            ChatChannel.OpenRoom,
+            noti.seq
+          );
+        } else if (noti.type === NotificationType.Message) {
+          appWindow.browserWindow.webContents.send(
+            MessageChannel.OpenMessage,
+            noti.seq
+          );
+        }
         appWindow.show();
         e.close();
       }
diff --git a/projects/ucap-webmessenger-app/src/app/pages/messenger/components/main.page.component.ts b/projects/ucap-webmessenger-app/src/app/pages/messenger/components/main.page.component.ts
index bcf03160..edccad61 100644
--- a/projects/ucap-webmessenger-app/src/app/pages/messenger/components/main.page.component.ts
+++ b/projects/ucap-webmessenger-app/src/app/pages/messenger/components/main.page.component.ts
@@ -1,5 +1,12 @@
 import { map, tap, take, catchError } from 'rxjs/operators';
-import { Component, OnInit, Inject, OnDestroy, ViewChild } from '@angular/core';
+import {
+  Component,
+  OnInit,
+  Inject,
+  OnDestroy,
+  ViewChild,
+  ChangeDetectorRef
+} from '@angular/core';
 
 import { Store, select } from '@ngrx/store';
 
@@ -38,6 +45,17 @@ import { DaesangProtocolService } from '@ucap-webmessenger/daesang';
 import { CallService } from '@ucap-webmessenger/api-prompt';
 import { EnvironmentsInfo, KEY_ENVIRONMENTS_INFO } from '@app/types';
 import { SessionStorageService } from '@ucap-webmessenger/web-storage';
+import {
+  MessageApiService,
+  MessageType,
+  DetailRequest
+} from '@ucap-webmessenger/api-message';
+import { MessageStatusCode } from '@ucap-webmessenger/api';
+import {
+  MessageDetailDialogComponent,
+  MessageDetailDialogResult,
+  MessageDetailDialogData
+} from '@app/layouts/messenger/dialogs/message/message-detail.dialog.component';
 
 @Component({
   selector: 'app-page-messenger-main',
@@ -49,6 +67,7 @@ export class MainPageComponent implements OnInit, OnDestroy {
   selectedRightDrawer$: Observable<string | null>;
   idleStateChangedSubscription: Subscription;
   chatOpenRoomSubscription: Subscription;
+  msgOpenMessageSubscription: Subscription;
 
   defaultLeftSideComponentWidth = 380;
   leftSideComponentWidth = this.defaultLeftSideComponentWidth;
@@ -63,11 +82,13 @@ export class MainPageComponent implements OnInit, OnDestroy {
     @Inject(UCAP_NATIVE_SERVICE) private nativeService: NativeService,
     private store: Store<any>,
     private statusProtocolService: StatusProtocolService,
+    private messageApiService: MessageApiService,
     private daesangProtocolService: DaesangProtocolService,
     private callService: CallService,
     private sessionStorageService: SessionStorageService,
     private dialogService: DialogService,
-    private logger: NGXLogger
+    private logger: NGXLogger,
+    private changeDetectorRef: ChangeDetectorRef
   ) {
     this.environmentsInfo = this.sessionStorageService.get<EnvironmentsInfo>(
       KEY_ENVIRONMENTS_INFO
@@ -122,6 +143,46 @@ export class MainPageComponent implements OnInit, OnDestroy {
         this.store.dispatch(ChatStore.selectedRoom({ roomSeq }));
       });
 
+    this.msgOpenMessageSubscription = this.nativeService
+      .msgOpenMessage()
+      .subscribe(messageSeq => {
+        console.log(messageSeq);
+
+        // this.messageApiService
+        //   .detailMessage({
+        //     userSeq: this.loginRes.userSeq,
+        //     deviceType: this.environmentsInfo.deviceType,
+        //     tokenKey: this.loginRes.tokenString,
+        //     type: MessageType.Receive,
+        //     msgId: Number(messageSeq)
+        //   } as DetailRequest)
+        //   .pipe(
+        //     take(1),
+        //     map(res => {
+        //       if (res.responseCode === MessageStatusCode.Success) {
+        //         // detail view..
+        //         this.dialogService.open<
+        //           MessageDetailDialogComponent,
+        //           MessageDetailDialogData,
+        //           MessageDetailDialogResult
+        //         >(MessageDetailDialogComponent, {
+        //           width: '600px',
+        //           data: {
+        //             detail: res,
+        //             loginRes: this.loginRes,
+        //             environmentsInfo: this.environmentsInfo
+        //           }
+        //         });
+
+        //         // this.changeDetectorRef.detectChanges();
+        //       } else {
+        //       }
+        //     }),
+        //     catchError(error => of(this.logger.error(error)))
+        //   )
+        //   .subscribe();
+      });
+
     this.loginResSubscription = this.store
       .pipe(
         select(AppStore.AccountSelector.AuthenticationSelector.loginRes),
diff --git a/projects/ucap-webmessenger-app/src/app/services/notification.service.ts b/projects/ucap-webmessenger-app/src/app/services/notification.service.ts
index e1af66c9..adc1185b 100644
--- a/projects/ucap-webmessenger-app/src/app/services/notification.service.ts
+++ b/projects/ucap-webmessenger-app/src/app/services/notification.service.ts
@@ -86,9 +86,15 @@ import * as StatusStore from '@app/store/messenger/status';
 import {
   NotificationRequest,
   NativeService,
-  UCAP_NATIVE_SERVICE
+  UCAP_NATIVE_SERVICE,
+  NotificationType
 } from '@ucap-webmessenger/native';
 import { StringUtil } from '@ucap-webmessenger/ui';
+import {
+  UmgProtocolService,
+  SSVC_TYPE_UMG_NOTI,
+  UmgNotiNotification
+} from '@ucap-webmessenger/protocol-umg';
 
 @Injectable()
 export class AppNotificationService {
@@ -100,6 +106,7 @@ export class AppNotificationService {
     private groupProtocolService: GroupProtocolService,
     private buddyProtocolService: BuddyProtocolService,
     private statusProtocolService: StatusProtocolService,
+    private umgProtocolService: UmgProtocolService,
     @Inject(UCAP_NATIVE_SERVICE) private nativeService: NativeService,
     private store: Store<any>,
     private logger: NGXLogger
@@ -158,7 +165,8 @@ export class AppNotificationService {
                 // notification..
                 if (notiOrRes.SSVC_TYPE === SSVC_TYPE_EVENT_SEND_NOTI) {
                   const notiReq: NotificationRequest = {
-                    roomSeq: noti.roomSeq,
+                    type: NotificationType.Event,
+                    seq: noti.roomSeq,
                     title: '메세지가 도착했습니다.',
                     contents: StringUtil.convertFinalEventMessage(
                       noti.eventType,
@@ -485,5 +493,36 @@ export class AppNotificationService {
         })
       )
       .subscribe();
+    this.umgProtocolService.notification$
+      .pipe(
+        tap(notiOrRes => {
+          switch (notiOrRes.SSVC_TYPE) {
+            case SSVC_TYPE_UMG_NOTI:
+              {
+                const noti = notiOrRes as UmgNotiNotification;
+                this.logger.debug(
+                  'Notification::umgProtocolService::UmgNotiNotification',
+                  noti
+                );
+                console.log(noti);
+                // notification..
+                const notiReq: NotificationRequest = {
+                  type: NotificationType.Message,
+                  seq: noti.keyId,
+                  title: '쪽지가 도착했습니다.',
+                  contents: noti.text,
+                  image: noti.senderInfo.profileImageFile,
+                  useSound: true,
+                  interval: 0
+                };
+                this.nativeService.notify(notiReq);
+              }
+              break;
+            default:
+              break;
+          }
+        })
+      )
+      .subscribe();
   }
 }
diff --git a/projects/ucap-webmessenger-app/src/app/store/account/authentication/effects.ts b/projects/ucap-webmessenger-app/src/app/store/account/authentication/effects.ts
index 4ec1c3f2..867b1918 100644
--- a/projects/ucap-webmessenger-app/src/app/store/account/authentication/effects.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/account/authentication/effects.ts
@@ -47,7 +47,8 @@ import {
   LoginInfo,
   KEY_LOGIN_INFO,
   EnvironmentsInfo,
-  KEY_ENVIRONMENTS_INFO
+  KEY_ENVIRONMENTS_INFO,
+  KEY_URL_INFO
 } from '@app/types';
 import { AppAuthenticationService } from '@app/services/authentication.service';
 import { NGXLogger } from 'ngx-logger';
@@ -71,6 +72,7 @@ import {
   ServiceProtocolService,
   UserPasswordSetResponse
 } from '@ucap-webmessenger/protocol-service';
+import { DaesangUrlInfoResponse } from '@ucap-webmessenger/api-external';
 
 @Injectable()
 export class Effects {
@@ -287,35 +289,62 @@ export class Effects {
           }
 
           if (!loginRes.passwordValid) {
-            const result = await this.dialogService.open<
-              ChangePasswordDialogComponent,
-              ChangePasswordDialogData,
-              ChangePasswordDialogResult
-            >(ChangePasswordDialogComponent, {
-              width: '500px',
-              height: '500px',
-              disableClose: false,
+            // [Daesang]
+            const urlInfo: DaesangUrlInfoResponse = this.sessionStorageService.get<
+              DaesangUrlInfoResponse
+            >(KEY_URL_INFO);
+
+            await this.dialogService.open<
+              AlertDialogComponent,
+              AlertDialogData,
+              AlertDialogResult
+            >(AlertDialogComponent, {
               data: {
-                loginId: loginInfo.loginId,
-                encryptedLoginPw: loginInfo.loginPw,
-                phoneNumber: loginRes.userInfo.hpNumber
+                title: '비밀번호 만기',
+                html: `비밀번호가 만료되었습니다.<br/>비밀번호 변경 후 다시 로그인 하세요.`
               }
             });
 
-            if (!!result && result.choice) {
-              this.store.dispatch(
-                userPasswordSet({
-                  req: {
-                    companyCode: loginInfo.companyCode,
-                    loginId: loginInfo.loginId,
-                    oldLoginPw: result.currentLoginPw,
-                    newLoginPw: result.newLoginPw
-                  }
-                })
-              );
-            } else {
-              return;
+            const passwordChangeUrl = urlInfo.webLink.filter(
+              weblink => weblink.key === 'WebLinkChgPassword'
+            );
+            if (passwordChangeUrl.length > 0) {
+              this.nativeService.openDefaultBrowser(passwordChangeUrl[0].url);
             }
+
+            this.store.dispatch(logout());
+
+            // // [GROUP]
+            // const result = await this.dialogService.open<
+            //   ChangePasswordDialogComponent,
+            //   ChangePasswordDialogData,
+            //   ChangePasswordDialogResult
+            // >(ChangePasswordDialogComponent, {
+            //   width: '500px',
+            //   height: '500px',
+            //   disableClose: false,
+            //   data: {
+            //     loginId: loginInfo.loginId,
+            //     encryptedLoginPw: loginInfo.loginPw,
+            //     phoneNumber: loginRes.userInfo.hpNumber
+            //   }
+            // });
+
+            // if (!!result && result.choice) {
+            //   this.store.dispatch(
+            //     userPasswordSet({
+            //       req: {
+            //         companyCode: loginInfo.companyCode,
+            //         loginId: loginInfo.loginId,
+            //         oldLoginPw: result.currentLoginPw,
+            //         newLoginPw: result.newLoginPw
+            //       }
+            //     })
+            //   );
+            // } else {
+            //   this.store.dispatch(logout());
+            //   return;
+            // }
           }
         })
       ),
diff --git a/projects/ucap-webmessenger-native-browser/src/lib/services/browser-native.service.ts b/projects/ucap-webmessenger-native-browser/src/lib/services/browser-native.service.ts
index 078b142a..b1aa4fba 100644
--- a/projects/ucap-webmessenger-native-browser/src/lib/services/browser-native.service.ts
+++ b/projects/ucap-webmessenger-native-browser/src/lib/services/browser-native.service.ts
@@ -6,7 +6,8 @@ import {
   NotificationRequest,
   WindowIdle,
   UpdateInfo,
-  UpdateCheckConfig
+  UpdateCheckConfig,
+  NotificationType
 } from '@ucap-webmessenger/native';
 import { HttpClient } from '@angular/common/http';
 import { map, share } from 'rxjs/operators';
@@ -25,6 +26,9 @@ export class BrowserNativeService extends NativeService {
   private chatOpenRoomSubject: Subject<string> | null = null;
   private chatOpenRoom$: Observable<string> | null = null;
 
+  private msgOpenMessageSubject: Subject<string> | null = null;
+  private msgOpenMessage$: Observable<string> | null = null;
+
   postAppInit(): void {
     this.notificationService.requestPermission();
   }
@@ -71,7 +75,11 @@ export class BrowserNativeService extends NativeService {
   notify(noti: NotificationRequest): void {
     this.notificationService.notify(noti, () => {
       window.focus();
-      this.chatOpenRoomSubject.next(noti.roomSeq);
+      if (noti.type === NotificationType.Event) {
+        this.chatOpenRoomSubject.next(noti.seq);
+      } else if (noti.type === NotificationType.Message) {
+        this.msgOpenMessageSubject.next(noti.seq);
+      }
     });
   }
   closeAllNotify(): void {}
@@ -176,6 +184,17 @@ export class BrowserNativeService extends NativeService {
     return this.chatOpenRoom$;
   }
 
+  msgOpenMessage(): Observable<string> {
+    if (!this.msgOpenMessageSubject) {
+      this.msgOpenMessageSubject = new Subject<WindowIdle>();
+      this.msgOpenMessage$ = this.msgOpenMessageSubject
+        .asObservable()
+        .pipe(share());
+    }
+
+    return this.msgOpenMessage$;
+  }
+
   getTranslateLoader(prefix?: string, suffix?: string): TranslateLoader {
     return new TranslateLoaderService(this, prefix, suffix);
   }
diff --git a/projects/ucap-webmessenger-native-electron/src/lib/services/electron-native.service.ts b/projects/ucap-webmessenger-native-electron/src/lib/services/electron-native.service.ts
index 05dd13c0..d8bcf14d 100644
--- a/projects/ucap-webmessenger-native-electron/src/lib/services/electron-native.service.ts
+++ b/projects/ucap-webmessenger-native-electron/src/lib/services/electron-native.service.ts
@@ -18,7 +18,8 @@ import {
   WindowStateChannel,
   IdleStateChannel,
   ChatChannel,
-  MessengerChannel
+  MessengerChannel,
+  MessageChannel
 } from '../types/channel.type';
 import { Injectable } from '@angular/core';
 import { TranslateLoaderService } from '../translate/electron-loader';
@@ -51,6 +52,9 @@ export class ElectronNativeService implements NativeService {
   private chatOpenRoomSubject: Subject<string> | null = null;
   private chatOpenRoom$: Observable<string> | null = null;
 
+  private msgOpenMessageSubject: Subject<string> | null = null;
+  private msgOpenMessage$: Observable<string> | null = null;
+
   private backgroundCheckForUpdatesSubject: Subject<UpdateInfo> | null = null;
   private backgroundCheckForUpdates$: Observable<UpdateInfo> | null = null;
 
@@ -311,6 +315,23 @@ export class ElectronNativeService implements NativeService {
     return this.chatOpenRoom$;
   }
 
+  msgOpenMessage(): Observable<string> {
+    if (!this.msgOpenMessageSubject) {
+      this.msgOpenMessageSubject = new Subject<WindowIdle>();
+      this.msgOpenMessage$ = this.msgOpenMessageSubject
+        .asObservable()
+        .pipe(share());
+    }
+
+    this.ipcRenderer.on(
+      MessageChannel.OpenMessage,
+      (event: any, messageSeq: string) => {
+        this.msgOpenMessageSubject.next(messageSeq);
+      }
+    );
+    return this.msgOpenMessage$;
+  }
+
   getTranslateLoader(prefix?: string, suffix?: string): TranslateLoader {
     return new TranslateLoaderService(this, prefix, suffix);
   }
diff --git a/projects/ucap-webmessenger-native-electron/src/lib/types/channel.type.ts b/projects/ucap-webmessenger-native-electron/src/lib/types/channel.type.ts
index 6bc3be7d..4f6ac160 100644
--- a/projects/ucap-webmessenger-native-electron/src/lib/types/channel.type.ts
+++ b/projects/ucap-webmessenger-native-electron/src/lib/types/channel.type.ts
@@ -9,6 +9,10 @@ export enum ChatChannel {
   OpenRoom = 'UCAP::chat::openRoom'
 }
 
+export enum MessageChannel {
+  OpenMessage = 'UCAP::message::openMessage'
+}
+
 export enum NotificationChannel {
   Notify = 'UCAP::notification::notify',
   CloseAllNotify = 'UCAP::notification::closeAllNotify'
diff --git a/projects/ucap-webmessenger-native/src/lib/models/notification.ts b/projects/ucap-webmessenger-native/src/lib/models/notification.ts
index 3eb08394..d1de44ed 100644
--- a/projects/ucap-webmessenger-native/src/lib/models/notification.ts
+++ b/projects/ucap-webmessenger-native/src/lib/models/notification.ts
@@ -1,5 +1,8 @@
+import { NotificationType } from '../types/notification.type';
+
 export interface NotificationRequest {
-  roomSeq: string;
+  type: NotificationType;
+  seq: string;
   title: string;
   contents: string;
   image: string;
diff --git a/projects/ucap-webmessenger-native/src/lib/services/native.service.ts b/projects/ucap-webmessenger-native/src/lib/services/native.service.ts
index 7c36af6e..7cdd675e 100644
--- a/projects/ucap-webmessenger-native/src/lib/services/native.service.ts
+++ b/projects/ucap-webmessenger-native/src/lib/services/native.service.ts
@@ -49,6 +49,7 @@ export abstract class NativeService {
   abstract idleStateChanged(): Observable<WindowIdle>;
 
   abstract chatOpenRoom(): Observable<string>;
+  abstract msgOpenMessage(): Observable<string>;
 
   abstract getTranslateLoader(
     prefix?: string,
diff --git a/projects/ucap-webmessenger-native/src/lib/types/notification.type.ts b/projects/ucap-webmessenger-native/src/lib/types/notification.type.ts
new file mode 100644
index 00000000..dd0bcce6
--- /dev/null
+++ b/projects/ucap-webmessenger-native/src/lib/types/notification.type.ts
@@ -0,0 +1,6 @@
+export enum NotificationType {
+  /** 대화 */
+  Event = 'E',
+  /** 쪽지 */
+  Message = 'M'
+}
diff --git a/projects/ucap-webmessenger-native/src/public-api.ts b/projects/ucap-webmessenger-native/src/public-api.ts
index 82c6bd83..b114fd0d 100644
--- a/projects/ucap-webmessenger-native/src/public-api.ts
+++ b/projects/ucap-webmessenger-native/src/public-api.ts
@@ -2,14 +2,14 @@
  * Public API Surface of ucap-webmessenger-native
  */
 
+export * from './lib/types/notification.type';
 export * from './lib/types/token';
+export * from './lib/types/window-state.type';
+export * from './lib/types/window-idle.type';
 
 export * from './lib/models/notification';
 export * from './lib/models/update-info';
 
 export * from './lib/services/native.service';
 
-export * from './lib/types/window-state.type';
-export * from './lib/types/window-idle.type';
-
 export * from './lib/config/module-config';
diff --git a/projects/ucap-webmessenger-protocol-umg/src/lib/models/sender-info.ts b/projects/ucap-webmessenger-protocol-umg/src/lib/models/sender-info.ts
new file mode 100644
index 00000000..c0d06a48
--- /dev/null
+++ b/projects/ucap-webmessenger-protocol-umg/src/lib/models/sender-info.ts
@@ -0,0 +1,9 @@
+export interface SenderInfo {
+  seq: number;
+  /** 사용자명 */
+  name: string;
+  /** 프로필이미지 */
+  profileImageFile: string;
+  /** 직급 */
+  grade: string;
+}
diff --git a/projects/ucap-webmessenger-protocol-umg/src/lib/protocols/noti.ts b/projects/ucap-webmessenger-protocol-umg/src/lib/protocols/noti.ts
new file mode 100644
index 00000000..0a09a0c8
--- /dev/null
+++ b/projects/ucap-webmessenger-protocol-umg/src/lib/protocols/noti.ts
@@ -0,0 +1,52 @@
+import {
+  ProtocolDecoder,
+  ProtocolMessage,
+  BodyStringDivider,
+  ProtocolNotification,
+  decodeProtocolMessage
+} from '@ucap-webmessenger/protocol';
+import { SenderInfo } from '../models/sender-info';
+
+export interface UmgNotiNotification extends ProtocolNotification {
+  /** 송신자SEQ(n) */
+  senderSeq: number;
+  /** { 송신자정보 } */
+  senderInfo: SenderInfo;
+  /** 푸시타입(s) */
+  pushType: string;
+  /** keyID(s) */
+  keyId: string;
+  /** Tiltle(s) */
+  title: string;
+  /** 전달Text(s) */
+  text: string;
+}
+
+export const decodeUmgNotiNotification: ProtocolDecoder<UmgNotiNotification> = (
+  message: ProtocolMessage
+) => {
+  let senderInfo: SenderInfo;
+  if (message.bodyList.length > 1) {
+    const info = message.bodyList[1].split(BodyStringDivider);
+    senderInfo = {
+      seq: Number(info[0]),
+      name: info[1],
+      profileImageFile: info[2],
+      grade: info[3]
+    };
+  }
+  return decodeProtocolMessage(message, {
+    /** 송신자SEQ(n) */
+    senderSeq: Number(message.bodyList[0]),
+    /** { 송신자정보 } */
+    senderInfo,
+    /** 푸시타입(s) */
+    pushType: message.bodyList[2],
+    /** keyID(s) */
+    keyId: message.bodyList[3],
+    /** Tiltle(s) */
+    title: message.bodyList[4],
+    /** 전달Text(s) */
+    text: message.bodyList[5]
+  } as UmgNotiNotification);
+};
diff --git a/projects/ucap-webmessenger-protocol-umg/src/lib/services/umg-protocol.service.ts b/projects/ucap-webmessenger-protocol-umg/src/lib/services/umg-protocol.service.ts
index 9f1e800c..5e08eacc 100644
--- a/projects/ucap-webmessenger-protocol-umg/src/lib/services/umg-protocol.service.ts
+++ b/projects/ucap-webmessenger-protocol-umg/src/lib/services/umg-protocol.service.ts
@@ -1,8 +1,44 @@
 import { Injectable } from '@angular/core';
+import { Subject, Observable } from 'rxjs';
+import {
+  UmgNotiNotification,
+  decodeUmgNotiNotification
+} from '../protocols/noti';
+import { ProtocolService } from '@ucap-webmessenger/protocol';
+import { share, filter, tap } from 'rxjs/operators';
+import { SVC_TYPE_UMG, SSVC_TYPE_UMG_NOTI } from '../types/service';
+
+type Notifications = UmgNotiNotification;
 
 @Injectable({
   providedIn: 'root'
 })
 export class UmgProtocolService {
-  constructor() {}
+  private notificationSubject: Subject<Notifications>;
+  public notification$: Observable<Notifications>;
+
+  constructor(private protocolService: ProtocolService) {
+    this.notificationSubject = new Subject();
+    this.notification$ = this.notificationSubject.asObservable().pipe(share());
+
+    this.protocolService.serverMessage
+      .pipe(
+        filter(message => message.serviceType === SVC_TYPE_UMG),
+        tap(message => {
+          switch (message.subServiceType) {
+            case SSVC_TYPE_UMG_NOTI:
+              {
+                this.notificationSubject.next(
+                  decodeUmgNotiNotification(message)
+                );
+              }
+              break;
+
+            default:
+              break;
+          }
+        })
+      )
+      .subscribe();
+  }
 }
diff --git a/projects/ucap-webmessenger-protocol-umg/src/lib/types/service.ts b/projects/ucap-webmessenger-protocol-umg/src/lib/types/service.ts
new file mode 100644
index 00000000..837e0a96
--- /dev/null
+++ b/projects/ucap-webmessenger-protocol-umg/src/lib/types/service.ts
@@ -0,0 +1,8 @@
+export const SVC_TYPE_UMG = 52; // Message
+export const SSVC_TYPE_UMG_SEND_REQ = 1; // Message 전송 요청
+export const SSVC_TYPE_UMG_SEND_RES = 2; // Message 전송 응답
+export const SSVC_TYPE_UMG_NOTI = 3; // Message 도착 알림
+export const SSVC_TYPE_UMG_NOTI_FWD = 4; // Message 전송 요청
+export const SSVC_TYPE_UMG_DELETE_REQ = 11; // Message 삭제 요청
+export const SSVC_TYPE_UMG_DELETE_RES = 12; // Message 삭제 응답
+export const SSVC_TYPE_UMG_DELETE_NOTI = 13; // Message 삭제 알림
diff --git a/projects/ucap-webmessenger-protocol-umg/src/public-api.ts b/projects/ucap-webmessenger-protocol-umg/src/public-api.ts
index 05418359..4e2e7302 100644
--- a/projects/ucap-webmessenger-protocol-umg/src/public-api.ts
+++ b/projects/ucap-webmessenger-protocol-umg/src/public-api.ts
@@ -2,6 +2,12 @@
  * Public API Surface of ucap-webmessenger-protocol-umg
  */
 
+export * from './lib/models/sender-info';
+
+export * from './lib/protocols/noti';
+
 export * from './lib/services/umg-protocol.service';
 
+export * from './lib/types/service';
+
 export * from './lib/ucap-umg-protocol.module';