diff --git a/ui-ngx/src/app/core/ws/telemetry-websocket.service.ts b/ui-ngx/src/app/core/ws/telemetry-websocket.service.ts
index d89bcc2b2e..f8fe055136 100644
--- a/ui-ngx/src/app/core/ws/telemetry-websocket.service.ts
+++ b/ui-ngx/src/app/core/ws/telemetry-websocket.service.ts
@@ -32,12 +32,20 @@ import {
   isAlarmDataUpdateMsg,
   isEntityCountUpdateMsg,
   isEntityDataUpdateMsg,
+  isNotificationCountUpdateMsg,
+  isNotificationsUpdateMsg,
+  MarkAllAsReadCmd,
+  MarkAsReadCmd,
   NotificationCountUpdate,
+  NotificationSubscriber,
   NotificationsUpdate,
   SubscriptionCmd,
   SubscriptionUpdate,
   TelemetryPluginCmdsWrapper,
   TelemetrySubscriber,
+  UnreadCountSubCmd,
+  UnreadSubCmd,
+  UnsubscribeCmd,
   WebsocketDataMsg
 } from '@app/shared/models/telemetry/telemetry.models';
 import { Store } from '@ngrx/store';
@@ -45,16 +53,6 @@ import { AppState } from '@core/core.state';
 import { AuthService } from '@core/auth/auth.service';
 import { WINDOW } from '@core/services/window.service';
 import { WebsocketService } from '@core/ws/websocket.service';
-import {
-  isNotificationCountUpdateMsg,
-  isNotificationsUpdateMsg,
-  MarkAllAsReadCmd,
-  MarkAsReadCmd,
-  NotificationSubscriber,
-  UnreadCountSubCmd,
-  UnreadSubCmd,
-  UnsubscribeCmd
-} from '@shared/models/websocket/notification-ws.models';
 
 // @dynamic
 @Injectable({
@@ -145,19 +143,19 @@ export class TelemetryWebsocketService extends WebsocketService<TelemetrySubscri
     if ('cmdId' in message && message.cmdId) {
       subscriber = this.subscribersMap.get(message.cmdId);
       if (subscriber instanceof NotificationSubscriber) {
-        if (isNotificationCountUpdateMsg(message) && subscriber) {
+        if (isNotificationCountUpdateMsg(message)) {
           subscriber.onNotificationCountUpdate(new NotificationCountUpdate(message));
-        } else if (isNotificationsUpdateMsg(message) && subscriber) {
+        } else if (isNotificationsUpdateMsg(message)) {
           subscriber.onNotificationsUpdate(new NotificationsUpdate(message));
         }
       } else if (subscriber instanceof TelemetrySubscriber) {
-        if (isEntityDataUpdateMsg(message) && subscriber) {
+        if (isEntityDataUpdateMsg(message)) {
           subscriber.onEntityData(new EntityDataUpdate(message));
-        } else if (isAlarmDataUpdateMsg(message) && subscriber) {
+        } else if (isAlarmDataUpdateMsg(message)) {
           subscriber.onAlarmData(new AlarmDataUpdate(message));
-        } else if (isEntityCountUpdateMsg(message) && subscriber) {
+        } else if (isEntityCountUpdateMsg(message)) {
           subscriber.onEntityCount(new EntityCountUpdate(message));
-        } else if (isAlarmCountUpdateMsg(message) && subscriber) {
+        } else if (isAlarmCountUpdateMsg(message)) {
           subscriber.onAlarmCount(new AlarmCountUpdate(message));
         }
       }
diff --git a/ui-ngx/src/app/core/ws/websocket.service.ts b/ui-ngx/src/app/core/ws/websocket.service.ts
index 02f70433c2..82b2ec2453 100644
--- a/ui-ngx/src/app/core/ws/websocket.service.ts
+++ b/ui-ngx/src/app/core/ws/websocket.service.ts
@@ -25,11 +25,11 @@ import {
   AuthCmd,
   AuthWsCmd,
   CmdUpdateMsg,
+  NotificationSubscriber,
   TelemetrySubscriber,
   WebsocketDataMsg
 } from '@shared/models/telemetry/telemetry.models';
 import { ActionNotificationShow } from '@core/notification/notification.actions';
-import { NotificationSubscriber } from '@shared/models/websocket/notification-ws.models';
 import Timeout = NodeJS.Timeout;
 
 const RECONNECT_INTERVAL = 2000;
diff --git a/ui-ngx/src/app/modules/home/components/notification/notification-bell.component.ts b/ui-ngx/src/app/modules/home/components/notification/notification-bell.component.ts
index 4399ce5d42..33b126c663 100644
--- a/ui-ngx/src/app/modules/home/components/notification/notification-bell.component.ts
+++ b/ui-ngx/src/app/modules/home/components/notification/notification-bell.component.ts
@@ -29,7 +29,7 @@ import { distinctUntilChanged, map, share, skip, tap } from 'rxjs/operators';
 import { MatButton } from '@angular/material/button';
 import { TbPopoverService } from '@shared/components/popover.service';
 import { ShowNotificationPopoverComponent } from '@home/components/notification/show-notification-popover.component';
-import { NotificationSubscriber } from '@shared/models/websocket/notification-ws.models';
+import { NotificationSubscriber } from '@shared/models/telemetry/telemetry.models';
 import { select, Store } from '@ngrx/store';
 import { selectIsAuthenticated } from '@core/auth/auth.selectors';
 import { AppState } from '@core/core.state';
diff --git a/ui-ngx/src/app/modules/home/components/notification/show-notification-popover.component.ts b/ui-ngx/src/app/modules/home/components/notification/show-notification-popover.component.ts
index 6771d3fdda..7865da5c29 100644
--- a/ui-ngx/src/app/modules/home/components/notification/show-notification-popover.component.ts
+++ b/ui-ngx/src/app/modules/home/components/notification/show-notification-popover.component.ts
@@ -24,7 +24,7 @@ import { NotificationWebsocketService } from '@core/ws/notification-websocket.se
 import { BehaviorSubject, Observable, ReplaySubject, Subscription } from 'rxjs';
 import { map, share, skip, tap } from 'rxjs/operators';
 import { Router } from '@angular/router';
-import { NotificationSubscriber } from '@shared/models/websocket/notification-ws.models';
+import { NotificationSubscriber } from '@shared/models/telemetry/telemetry.models';
 
 @Component({
   selector: 'tb-show-notification-popover',
diff --git a/ui-ngx/src/app/shared/models/public-api.ts b/ui-ngx/src/app/shared/models/public-api.ts
index 517ede9ba3..4ff3ce5778 100644
--- a/ui-ngx/src/app/shared/models/public-api.ts
+++ b/ui-ngx/src/app/shared/models/public-api.ts
@@ -41,7 +41,6 @@ export * from './limited-api.models';
 export * from './login.models';
 export * from './material.models';
 export * from './notification.models';
-export * from './websocket/notification-ws.models';
 export * from './websocket/websocket.models';
 export * from './oauth2.models';
 export * from './ota-package.models';
diff --git a/ui-ngx/src/app/shared/models/telemetry/telemetry.models.ts b/ui-ngx/src/app/shared/models/telemetry/telemetry.models.ts
index de237b35c2..03c7b5e267 100644
--- a/ui-ngx/src/app/shared/models/telemetry/telemetry.models.ts
+++ b/ui-ngx/src/app/shared/models/telemetry/telemetry.models.ts
@@ -17,7 +17,7 @@
 
 import { EntityType } from '@shared/models/entity-type.models';
 import { AggregationType } from '../time/time.models';
-import { Observable, ReplaySubject } from 'rxjs';
+import { BehaviorSubject, Observable, ReplaySubject } from 'rxjs';
 import { EntityId } from '@shared/models/id/entity-id';
 import { map } from 'rxjs/operators';
 import { NgZone } from '@angular/core';
@@ -35,11 +35,11 @@ import {
 import { PageData } from '@shared/models/page/page-data';
 import { alarmFields } from '@shared/models/alarm.models';
 import { entityFields } from '@shared/models/entity.models';
-import { isUndefined } from '@core/utils';
-import { CmdWrapper, WsSubscriber } from '@shared/models/websocket/websocket.models';
+import { isDefinedAndNotNull, isUndefined } from '@core/utils';
+import { CmdWrapper, WsService, WsSubscriber } from '@shared/models/websocket/websocket.models';
 import { TelemetryWebsocketService } from '@core/ws/telemetry-websocket.service';
-import { NotificationCountUpdateMsg, NotificationsUpdateMsg } from '@shared/models/websocket/notification-ws.models';
 import { Notification } from '@shared/models/notification.models';
+import { WebsocketService } from '@core/ws/websocket.service';
 
 export const NOT_SUPPORTED = 'Not supported!';
 
@@ -275,6 +275,37 @@ export class AlarmCountCmd implements WebsocketCmd {
   type = WsCmdType.ALARM_COUNT;
 }
 
+export class UnreadCountSubCmd implements WebsocketCmd {
+  cmdId: number;
+  type = WsCmdType.NOTIFICATIONS_COUNT;
+}
+
+export class UnreadSubCmd implements WebsocketCmd {
+  limit: number;
+  cmdId: number;
+  type = WsCmdType.NOTIFICATIONS;
+
+  constructor(limit = 10) {
+    this.limit = limit;
+  }
+}
+
+export class MarkAsReadCmd implements WebsocketCmd {
+
+  cmdId: number;
+  notifications: string[];
+  type = WsCmdType.MARK_NOTIFICATIONS_AS_READ;
+
+  constructor(ids: string[]) {
+    this.notifications = ids;
+  }
+}
+
+export class MarkAllAsReadCmd implements WebsocketCmd {
+  cmdId: number;
+  type = WsCmdType.MARK_ALL_NOTIFICATIONS_AS_READ;
+}
+
 export class EntityDataUnsubscribeCmd implements WebsocketCmd {
   cmdId: number;
   type = WsCmdType.ENTITY_DATA_UNSUBSCRIBE;
@@ -295,6 +326,11 @@ export class AlarmCountUnsubscribeCmd implements WebsocketCmd {
   type = WsCmdType.ALARM_COUNT_UNSUBSCRIBE;
 }
 
+export class UnsubscribeCmd implements WebsocketCmd {
+  cmdId: number;
+  type = WsCmdType.NOTIFICATIONS_UNSUBSCRIBE;
+}
+
 export class AuthCmd implements WebsocketCmd {
   cmdId = 0;
   type: WsCmdType.AUTH;
@@ -396,6 +432,20 @@ export interface AlarmCountUpdateMsg extends CmdUpdateMsg {
   count: number;
 }
 
+export interface NotificationCountUpdateMsg extends CmdUpdateMsg {
+  cmdUpdateType: CmdUpdateType.NOTIFICATIONS_COUNT;
+  totalUnreadCount: number;
+  sequenceNumber: number;
+}
+
+export interface NotificationsUpdateMsg extends CmdUpdateMsg {
+  cmdUpdateType: CmdUpdateType.NOTIFICATIONS;
+  update?: Notification;
+  notifications?: Notification[];
+  totalUnreadCount: number;
+  sequenceNumber: number;
+}
+
 export type WebsocketDataMsg = AlarmDataUpdateMsg | AlarmCountUpdateMsg |
   EntityDataUpdateMsg | EntityCountUpdateMsg | SubscriptionUpdateMsg | NotificationCountUpdateMsg | NotificationsUpdateMsg;
 
@@ -419,6 +469,16 @@ export const isAlarmCountUpdateMsg = (message: WebsocketDataMsg): message is Ala
   return updateMsg.cmdId !== undefined && updateMsg.cmdUpdateType === CmdUpdateType.ALARM_COUNT_DATA;
 };
 
+export const isNotificationCountUpdateMsg = (message: WebsocketDataMsg): message is NotificationCountUpdateMsg => {
+  const updateMsg = (message as CmdUpdateMsg);
+  return updateMsg.cmdId !== undefined && updateMsg.cmdUpdateType === CmdUpdateType.NOTIFICATIONS_COUNT;
+};
+
+export const isNotificationsUpdateMsg = (message: WebsocketDataMsg): message is NotificationsUpdateMsg => {
+  const updateMsg = (message as CmdUpdateMsg);
+  return updateMsg.cmdId !== undefined && updateMsg.cmdUpdateType === CmdUpdateType.NOTIFICATIONS;
+};
+
 export class SubscriptionUpdate implements SubscriptionUpdateMsg {
   subscriptionId: number;
   errorCode: number;
@@ -796,3 +856,113 @@ export class TelemetrySubscriber extends WsSubscriber {
     );
   }
 }
+
+export class NotificationSubscriber extends WsSubscriber {
+  private notificationCountSubject = new BehaviorSubject<NotificationCountUpdate>({
+    cmdId: 0,
+    cmdUpdateType: undefined,
+    errorCode: 0,
+    errorMsg: '',
+    totalUnreadCount: 0,
+    sequenceNumber: 0
+  });
+  private notificationsSubject = new BehaviorSubject<NotificationsUpdate>({
+    cmdId: 0,
+    cmdUpdateType: undefined,
+    errorCode: 0,
+    errorMsg: '',
+    notifications: null,
+    totalUnreadCount: 0,
+    sequenceNumber: 0
+  });
+
+  public messageLimit = 10;
+
+  public notificationCount$ = this.notificationCountSubject.asObservable().pipe(map(msg => msg.totalUnreadCount));
+  public notifications$ = this.notificationsSubject.asObservable().pipe(map(msg => msg.notifications ));
+
+  public static createNotificationCountSubscription(websocketService: WebsocketService<WsSubscriber>,
+                                                    zone: NgZone): NotificationSubscriber {
+    const subscriptionCommand = new UnreadCountSubCmd();
+    const subscriber = new NotificationSubscriber(websocketService, zone);
+    subscriber.subscriptionCommands.push(subscriptionCommand);
+    return subscriber;
+  }
+
+  public static createNotificationsSubscription(websocketService: WebsocketService<WsSubscriber>,
+                                                zone: NgZone, limit = 10): NotificationSubscriber {
+    const subscriptionCommand = new UnreadSubCmd(limit);
+    const subscriber = new NotificationSubscriber(websocketService, zone);
+    subscriber.messageLimit = limit;
+    subscriber.subscriptionCommands.push(subscriptionCommand);
+    return subscriber;
+  }
+
+  public static createMarkAsReadCommand(websocketService: WebsocketService<WsSubscriber>,
+                                        ids: string[]): NotificationSubscriber {
+    const subscriptionCommand = new MarkAsReadCmd(ids);
+    const subscriber = new NotificationSubscriber(websocketService);
+    subscriber.subscriptionCommands.push(subscriptionCommand);
+    return subscriber;
+  }
+
+  public static createMarkAllAsReadCommand(websocketService: WebsocketService<WsSubscriber>): NotificationSubscriber {
+    const subscriptionCommand = new MarkAllAsReadCmd();
+    const subscriber = new NotificationSubscriber(websocketService);
+    subscriber.subscriptionCommands.push(subscriptionCommand);
+    return subscriber;
+  }
+
+  constructor(private websocketService: WsService<any>, protected zone?: NgZone) {
+    super(websocketService, zone);
+  }
+
+  onNotificationCountUpdate(message: NotificationCountUpdate) {
+    const currentNotificationCount = this.notificationCountSubject.value;
+    if (message.sequenceNumber <= currentNotificationCount.sequenceNumber) {
+      return;
+    }
+    if (this.zone) {
+      this.zone.run(
+        () => {
+          this.notificationCountSubject.next(message);
+        }
+      );
+    } else {
+      this.notificationCountSubject.next(message);
+    }
+  }
+
+  public complete() {
+    this.notificationCountSubject.complete();
+    this.notificationsSubject.complete();
+    super.complete();
+  }
+
+  onNotificationsUpdate(message: NotificationsUpdate) {
+    const currentNotifications = this.notificationsSubject.value;
+    if (message.sequenceNumber <= currentNotifications.sequenceNumber) {
+      message.totalUnreadCount = currentNotifications.totalUnreadCount;
+    }
+    let processMessage = message;
+    if (isDefinedAndNotNull(currentNotifications) && message.update) {
+      currentNotifications.notifications.unshift(message.update);
+      if (currentNotifications.notifications.length > this.messageLimit) {
+        currentNotifications.notifications.pop();
+      }
+      processMessage = currentNotifications;
+      processMessage.totalUnreadCount = message.totalUnreadCount;
+    }
+    if (this.zone) {
+      this.zone.run(
+        () => {
+          this.notificationsSubject.next(processMessage);
+          this.notificationCountSubject.next(processMessage);
+        }
+      );
+    } else {
+      this.notificationsSubject.next(processMessage);
+      this.notificationCountSubject.next(processMessage);
+    }
+  }
+}
diff --git a/ui-ngx/src/app/shared/models/websocket/notification-ws.models.ts b/ui-ngx/src/app/shared/models/websocket/notification-ws.models.ts
deleted file mode 100644
index a4e4a01713..0000000000
--- a/ui-ngx/src/app/shared/models/websocket/notification-ws.models.ts
+++ /dev/null
@@ -1,202 +0,0 @@
-///
-/// Copyright © 2016-2023 The Thingsboard Authors
-///
-/// Licensed under the Apache License, Version 2.0 (the "License");
-/// you may not use this file except in compliance with the License.
-/// You may obtain a copy of the License at
-///
-///     http://www.apache.org/licenses/LICENSE-2.0
-///
-/// Unless required by applicable law or agreed to in writing, software
-/// distributed under the License is distributed on an "AS IS" BASIS,
-/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-/// See the License for the specific language governing permissions and
-/// limitations under the License.
-///
-
-import {
-  CmdUpdateMsg,
-  CmdUpdateType,
-  NotificationCountUpdate,
-  NotificationsUpdate,
-  WebsocketCmd,
-  WebsocketDataMsg,
-  WsCmdType
-} from '@shared/models/telemetry/telemetry.models';
-import { NgZone } from '@angular/core';
-import { isDefinedAndNotNull } from '@core/utils';
-import { Notification } from '@shared/models/notification.models';
-import { WsService, WsSubscriber } from '@shared/models/websocket/websocket.models';
-import { BehaviorSubject } from 'rxjs';
-import { map } from 'rxjs/operators';
-import { WebsocketService } from '@core/ws/websocket.service';
-
-export class NotificationSubscriber extends WsSubscriber {
-  private notificationCountSubject = new BehaviorSubject<NotificationCountUpdate>({
-    cmdId: 0,
-    cmdUpdateType: undefined,
-    errorCode: 0,
-    errorMsg: '',
-    totalUnreadCount: 0,
-    sequenceNumber: 0
-  });
-  private notificationsSubject = new BehaviorSubject<NotificationsUpdate>({
-    cmdId: 0,
-    cmdUpdateType: undefined,
-    errorCode: 0,
-    errorMsg: '',
-    notifications: null,
-    totalUnreadCount: 0,
-    sequenceNumber: 0
-  });
-
-  public messageLimit = 10;
-
-  public notificationCount$ = this.notificationCountSubject.asObservable().pipe(map(msg => msg.totalUnreadCount));
-  public notifications$ = this.notificationsSubject.asObservable().pipe(map(msg => msg.notifications ));
-
-  public static createNotificationCountSubscription(websocketService: WebsocketService<WsSubscriber>,
-                                                    zone: NgZone): NotificationSubscriber {
-    const subscriptionCommand = new UnreadCountSubCmd();
-    const subscriber = new NotificationSubscriber(websocketService, zone);
-    subscriber.subscriptionCommands.push(subscriptionCommand);
-    return subscriber;
-  }
-
-  public static createNotificationsSubscription(websocketService: WebsocketService<WsSubscriber>,
-                                                zone: NgZone, limit = 10): NotificationSubscriber {
-    const subscriptionCommand = new UnreadSubCmd(limit);
-    const subscriber = new NotificationSubscriber(websocketService, zone);
-    subscriber.messageLimit = limit;
-    subscriber.subscriptionCommands.push(subscriptionCommand);
-    return subscriber;
-  }
-
-  public static createMarkAsReadCommand(websocketService: WebsocketService<WsSubscriber>,
-                                        ids: string[]): NotificationSubscriber {
-    const subscriptionCommand = new MarkAsReadCmd(ids);
-    const subscriber = new NotificationSubscriber(websocketService);
-    subscriber.subscriptionCommands.push(subscriptionCommand);
-    return subscriber;
-  }
-
-  public static createMarkAllAsReadCommand(websocketService: WebsocketService<WsSubscriber>): NotificationSubscriber {
-    const subscriptionCommand = new MarkAllAsReadCmd();
-    const subscriber = new NotificationSubscriber(websocketService);
-    subscriber.subscriptionCommands.push(subscriptionCommand);
-    return subscriber;
-  }
-
-  constructor(private websocketService: WsService<any>, protected zone?: NgZone) {
-    super(websocketService, zone);
-  }
-
-  onNotificationCountUpdate(message: NotificationCountUpdate) {
-    const currentNotificationCount = this.notificationCountSubject.value;
-    if (message.sequenceNumber <= currentNotificationCount.sequenceNumber) {
-      return;
-    }
-    if (this.zone) {
-      this.zone.run(
-        () => {
-          this.notificationCountSubject.next(message);
-        }
-      );
-    } else {
-      this.notificationCountSubject.next(message);
-    }
-  }
-
-  public complete() {
-    this.notificationCountSubject.complete();
-    this.notificationsSubject.complete();
-    super.complete();
-  }
-
-  onNotificationsUpdate(message: NotificationsUpdate) {
-    const currentNotifications = this.notificationsSubject.value;
-    if (message.sequenceNumber <= currentNotifications.sequenceNumber) {
-      message.totalUnreadCount = currentNotifications.totalUnreadCount;
-    }
-    let processMessage = message;
-    if (isDefinedAndNotNull(currentNotifications) && message.update) {
-      currentNotifications.notifications.unshift(message.update);
-      if (currentNotifications.notifications.length > this.messageLimit) {
-        currentNotifications.notifications.pop();
-      }
-      processMessage = currentNotifications;
-      processMessage.totalUnreadCount = message.totalUnreadCount;
-    }
-    if (this.zone) {
-      this.zone.run(
-        () => {
-          this.notificationsSubject.next(processMessage);
-          this.notificationCountSubject.next(processMessage);
-        }
-      );
-    } else {
-      this.notificationsSubject.next(processMessage);
-      this.notificationCountSubject.next(processMessage);
-    }
-  }
-}
-
-export class UnreadCountSubCmd implements WebsocketCmd {
-  cmdId: number;
-  type = WsCmdType.NOTIFICATIONS_COUNT;
-}
-
-export class UnreadSubCmd implements WebsocketCmd {
-  limit: number;
-  cmdId: number;
-  type = WsCmdType.NOTIFICATIONS;
-
-  constructor(limit = 10) {
-    this.limit = limit;
-  }
-}
-
-export class UnsubscribeCmd implements WebsocketCmd {
-  cmdId: number;
-  type = WsCmdType.NOTIFICATIONS_UNSUBSCRIBE;
-}
-
-export class MarkAsReadCmd implements WebsocketCmd {
-
-  cmdId: number;
-  notifications: string[];
-  type = WsCmdType.MARK_NOTIFICATIONS_AS_READ;
-
-  constructor(ids: string[]) {
-    this.notifications = ids;
-  }
-}
-
-export class MarkAllAsReadCmd implements WebsocketCmd {
-  cmdId: number;
-  type = WsCmdType.MARK_ALL_NOTIFICATIONS_AS_READ;
-}
-
-export interface NotificationCountUpdateMsg extends CmdUpdateMsg {
-  cmdUpdateType: CmdUpdateType.NOTIFICATIONS_COUNT;
-  totalUnreadCount: number;
-  sequenceNumber: number;
-}
-
-export interface NotificationsUpdateMsg extends CmdUpdateMsg {
-  cmdUpdateType: CmdUpdateType.NOTIFICATIONS;
-  update?: Notification;
-  notifications?: Notification[];
-  totalUnreadCount: number;
-  sequenceNumber: number;
-}
-
-export const isNotificationCountUpdateMsg = (message: WebsocketDataMsg): message is NotificationCountUpdateMsg => {
-  const updateMsg = (message as CmdUpdateMsg);
-  return updateMsg.cmdId !== undefined && updateMsg.cmdUpdateType === CmdUpdateType.NOTIFICATIONS_COUNT;
-};
-
-export const isNotificationsUpdateMsg = (message: WebsocketDataMsg): message is NotificationsUpdateMsg => {
-  const updateMsg = (message as CmdUpdateMsg);
-  return updateMsg.cmdId !== undefined && updateMsg.cmdUpdateType === CmdUpdateType.NOTIFICATIONS;
-};