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 ff31045b..474bbdb3 100644
--- a/projects/ucap-webmessenger-app/src/app/services/notification.service.ts
+++ b/projects/ucap-webmessenger-app/src/app/services/notification.service.ts
@@ -1,16 +1,15 @@
 import { Injectable } from '@angular/core';
 
-import { filter, tap } from 'rxjs/operators';
+import { tap } from 'rxjs/operators';
 
 import { Store } from '@ngrx/store';
 
-import { ProtocolService } from '@ucap-webmessenger/protocol';
 import {
-  SVC_TYPE_LOGOUT,
   SSVC_TYPE_LOGOUT_RES,
   SSVC_TYPE_LOGOUT_REMOTE_NOTI,
-  decodeLogout,
-  decodeLogoutRemoteNotification
+  AuthenticationProtocolService,
+  LogoutResponse,
+  LogoutRemoteNotification
 } from '@ucap-webmessenger/protocol-authentication';
 
 import * as AuthenticationStore from '../store/account/authentication';
@@ -19,36 +18,29 @@ import { NGXLogger } from 'ngx-logger';
 @Injectable()
 export class AppNotificationService {
   constructor(
-    private protocolService: ProtocolService,
+    private authenticationProtocolService: AuthenticationProtocolService,
     private store: Store<any>,
     private logger: NGXLogger
   ) {}
 
   public subscribe(): void {
-    this.protocolService.serverMessage
+    this.authenticationProtocolService.logoutNotification$
       .pipe(
-        filter(
-          message =>
-            message.serviceType === SVC_TYPE_LOGOUT &&
-            message.subServiceType === SSVC_TYPE_LOGOUT_RES
-        ),
-        tap(message => {
-          const logoutRes = decodeLogout(message);
-          this.logger.debug('logoutRes', logoutRes);
-          this.store.dispatch(AuthenticationStore.logout());
-        })
-      )
-      .subscribe();
-
-    this.protocolService.serverMessage
-      .pipe(
-        filter(
-          message =>
-            message.serviceType === SVC_TYPE_LOGOUT &&
-            message.subServiceType === SSVC_TYPE_LOGOUT_REMOTE_NOTI
-        ),
-        tap(message => {
-          const logoutRemoteNoti = decodeLogoutRemoteNotification(message);
+        tap(notiOrRes => {
+          switch (notiOrRes.Type) {
+            case SSVC_TYPE_LOGOUT_RES:
+              {
+                const res = notiOrRes as LogoutResponse;
+              }
+              break;
+            case SSVC_TYPE_LOGOUT_REMOTE_NOTI:
+              {
+                const noti = notiOrRes as LogoutRemoteNotification;
+              }
+              break;
+            default:
+              break;
+          }
           this.store.dispatch(AuthenticationStore.logout());
         })
       )
diff --git a/projects/ucap-webmessenger-protocol-authentication/src/lib/services/authentication-protocol.service.ts b/projects/ucap-webmessenger-protocol-authentication/src/lib/services/authentication-protocol.service.ts
index 1be94a84..1cd48016 100644
--- a/projects/ucap-webmessenger-protocol-authentication/src/lib/services/authentication-protocol.service.ts
+++ b/projects/ucap-webmessenger-protocol-authentication/src/lib/services/authentication-protocol.service.ts
@@ -1,7 +1,7 @@
 import { Injectable } from '@angular/core';
 
-import { Observable } from 'rxjs';
-import { map, take } from 'rxjs/operators';
+import { Observable, Subject } from 'rxjs';
+import { map, take, filter, tap, share } from 'rxjs/operators';
 
 import { ProtocolService } from '@ucap-webmessenger/protocol';
 import {
@@ -15,7 +15,9 @@ import {
   SSVC_TYPE_LOGIN_REQ,
   SVC_TYPE_LOGOUT,
   SSVC_TYPE_LOGOUT_REQ,
-  SSVC_TYPE_LOGOUT_REMOTE_REQ
+  SSVC_TYPE_LOGOUT_REMOTE_REQ,
+  SSVC_TYPE_LOGOUT_RES,
+  SSVC_TYPE_LOGOUT_REMOTE_NOTI
 } from '../types/service';
 import {
   LogoutRequest,
@@ -27,14 +29,57 @@ import {
   encodeLogoutRemote,
   decodeLogoutRemote,
   LogoutRemoteRequest,
-  LogoutRemoteResponse
+  LogoutRemoteResponse,
+  decodeLogoutRemoteNotification,
+  LogoutRemoteNotification
 } from '../protocols/logout-remote';
 
 @Injectable({
   providedIn: 'root'
 })
 export class AuthenticationProtocolService {
-  constructor(private protocolService: ProtocolService) {}
+  private logoutNotificationSubject: Subject<
+    LogoutResponse | LogoutRemoteNotification
+  >;
+  public logoutNotification$: Observable<
+    LogoutResponse | LogoutRemoteNotification
+  >;
+
+  constructor(private protocolService: ProtocolService) {
+    this.logoutNotificationSubject = new Subject();
+    this.logoutNotification$ = this.logoutNotificationSubject
+      .asObservable()
+      .pipe(share());
+
+    this.protocolService.serverMessage
+      .pipe(
+        filter(message => message.serviceType === SVC_TYPE_LOGOUT),
+        tap(message => {
+          switch (message.subServiceType) {
+            case SSVC_TYPE_LOGOUT_RES:
+              {
+                this.logoutNotificationSubject.next({
+                  ...decodeLogout(message),
+                  Type: SSVC_TYPE_LOGOUT_RES
+                });
+              }
+              break;
+            case SSVC_TYPE_LOGOUT_REMOTE_NOTI:
+              {
+                this.logoutNotificationSubject.next({
+                  ...decodeLogoutRemoteNotification(message),
+                  Type: SSVC_TYPE_LOGOUT_REMOTE_NOTI
+                });
+              }
+              break;
+
+            default:
+              break;
+          }
+        })
+      )
+      .subscribe();
+  }
 
   public login(req: LoginRequest): Observable<LoginResponse> {
     return this.protocolService
diff --git a/projects/ucap-webmessenger-protocol-event/src/lib/services/event-protocol.service.ts b/projects/ucap-webmessenger-protocol-event/src/lib/services/event-protocol.service.ts
index 6eded15c..bf4156ae 100644
--- a/projects/ucap-webmessenger-protocol-event/src/lib/services/event-protocol.service.ts
+++ b/projects/ucap-webmessenger-protocol-event/src/lib/services/event-protocol.service.ts
@@ -1,7 +1,15 @@
 import { Injectable } from '@angular/core';
 
-import { Observable } from 'rxjs';
-import { map, takeWhile, timeout, take } from 'rxjs/operators';
+import { Observable, Subject } from 'rxjs';
+import {
+  map,
+  takeWhile,
+  timeout,
+  take,
+  share,
+  filter,
+  tap
+} from 'rxjs/operators';
 
 import { ProtocolService } from '@ucap-webmessenger/protocol';
 
@@ -22,7 +30,8 @@ import {
   SSVC_TYPE_EVENT_PUSH_CL_REQ,
   SSVC_TYPE_EVENT_READ_REQ,
   SSVC_TYPE_EVENT_DEL_REQ,
-  SSVC_TYPE_EVENT_CANCEL_REQ
+  SSVC_TYPE_EVENT_CANCEL_REQ,
+  SSVC_TYPE_EVENT_CANCEL_NOTI
 } from '../types/service';
 import {
   SendRequest,
@@ -47,14 +56,44 @@ import {
   CancelRequest,
   CancelResponse,
   encodeCancel,
-  decodeCancel
+  decodeCancel,
+  CancelNotification,
+  decodeCancelNotification
 } from '../protocols/cancel';
 
 @Injectable({
   providedIn: 'root'
 })
 export class EventProtocolService {
-  constructor(private protocolService: ProtocolService) {}
+  private eventNotificationSubject: Subject<CancelNotification>;
+  public eventNotification$: Observable<CancelNotification>;
+
+  constructor(private protocolService: ProtocolService) {
+    this.eventNotificationSubject = new Subject();
+    this.eventNotification$ = this.eventNotificationSubject
+      .asObservable()
+      .pipe(share());
+
+    this.protocolService.serverMessage
+      .pipe(
+        filter(message => message.serviceType === SVC_TYPE_EVENT),
+        tap(message => {
+          switch (message.subServiceType) {
+            case SSVC_TYPE_EVENT_CANCEL_NOTI:
+              {
+                this.eventNotificationSubject.next({
+                  ...decodeCancelNotification(message),
+                  Type: SSVC_TYPE_EVENT_CANCEL_NOTI
+                });
+              }
+              break;
+            default:
+              break;
+          }
+        })
+      )
+      .subscribe();
+  }
 
   public info(req: InfoRequest): Observable<InfoResponse | InfoData> {
     return this.protocolService
diff --git a/projects/ucap-webmessenger-protocol/src/lib/protocols/protocol.ts b/projects/ucap-webmessenger-protocol/src/lib/protocols/protocol.ts
index 49a5e827..cdeb6149 100644
--- a/projects/ucap-webmessenger-protocol/src/lib/protocols/protocol.ts
+++ b/projects/ucap-webmessenger-protocol/src/lib/protocols/protocol.ts
@@ -14,8 +14,9 @@ export interface ProtocolStream {
   Type?: number;
 }
 
-// tslint:disable-next-line: no-empty-interface
-export interface ProtocolNotification {}
+export interface ProtocolNotification {
+  Type?: number;
+}
 
 export interface ProtocolMessage {
   serviceType: number;