diff --git a/client/modules/crm/src/views/calendar/calendar-page.js b/client/modules/crm/src/views/calendar/calendar-page.js
index cd697a6000..f5bc89f7f8 100644
--- a/client/modules/crm/src/views/calendar/calendar-page.js
+++ b/client/modules/crm/src/views/calendar/calendar-page.js
@@ -67,9 +67,9 @@ class CalendarPage extends View {
 
     /**
      * @private
-     * @type {DebounceHelper}
+     * @type {DebounceHelper|null}
      */
-    webSocketDebounceHelper
+    webSocketDebounceHelper = null
 
     /**
      * @private
@@ -77,6 +77,12 @@ class CalendarPage extends View {
      */
     webSocketDebounceInterval = 500
 
+    /**
+     * @private
+     * @type {number}
+     */
+    webSocketBlockInterval = 1000
+
     /**
      * A shortcut-key => action map.
      *
@@ -228,6 +234,7 @@ class CalendarPage extends View {
 
         this.webSocketDebounceHelper = new DebounceHelper({
             interval: this.webSocketDebounceInterval,
+            blockInterval: this.webSocketBlockInterval,
             handler: () => this.handleWebSocketUpdate(),
         });
 
@@ -254,6 +261,17 @@ class CalendarPage extends View {
         this.getCalendarView()?.actionRefresh({suppressLoadingAlert: true});
     }
 
+    /**
+     * @private
+     */
+    onSave() {
+        if (!this.webSocketDebounceHelper) {
+            return;
+        }
+
+        this.webSocketDebounceHelper.block()
+    }
+
     afterRender() {
         this.$el.focus();
     }
@@ -284,6 +302,9 @@ class CalendarPage extends View {
         this.getRouter().navigate(url, {trigger: trigger});
     }
 
+    /**
+     * @private
+     */
     setupCalendar() {
         const viewName = this.getMetadata().get(['clientDefs', 'Calendar', 'calendarView']) ||
             'crm:views/calendar/calendar';
@@ -294,6 +315,7 @@ class CalendarPage extends View {
             userName: this.options.userName,
             mode: this.mode,
             fullSelector: '#main > .calendar-container',
+            onSave: () => this.onSave(),
         }, view => {
             let initial = true;
 
@@ -330,6 +352,9 @@ class CalendarPage extends View {
         });
     }
 
+    /**
+     * @private
+     */
     setupTimeline() {
         const viewName = this.getMetadata().get(['clientDefs', 'Calendar', 'timelineView']) ||
             'crm:views/calendar/timeline';
@@ -339,6 +364,7 @@ class CalendarPage extends View {
             userId: this.options.userId,
             userName: this.options.userName,
             fullSelector: '#main > .calendar-container',
+            onSave: () => this.onSave(),
         }, view => {
             let initial = true;
 
diff --git a/client/src/helpers/util/debounce.js b/client/src/helpers/util/debounce.js
index 7a002c858f..3ee285e684 100644
--- a/client/src/helpers/util/debounce.js
+++ b/client/src/helpers/util/debounce.js
@@ -37,20 +37,49 @@ export default class DebounceHelper {
      * @type {boolean}
      * @private
      */
-    _blocked = false
+    blocked = false
 
     /**
-     *
      * @type {boolean}
      * @private
      */
-    _calledWhenBlocked = false
+    blockedInProcess = false
 
+    /**
+     * @type {boolean}
+     * @private
+     */
+    calledWhenProcessBlocked = false
+
+    /**
+     * @type {number}
+     * @private
+     */
+    interval = 500
+
+    /**
+     * @type {number}
+     * @private
+     */
+    blockInterval = 1000
+
+    /**
+     * @type {number}
+     * @private
+     */
+    blockedCallCount = 0
+
+    /**
+     * @type {number|null}
+     * @private
+     */
+    blockTimeoutId = null
 
     /**
      * @param {{
      *     handler: function(...*),
-     *     interval: number,
+     *     interval?: number,
+     *     blockInterval?: number,
      * }} options
      * @param options
      */
@@ -61,11 +90,8 @@ export default class DebounceHelper {
          */
         this.handler = options.handler;
 
-        /**
-         * @private
-         * @type {number}
-         */
-        this.interval = options.interval;
+        this.interval = options.interval ?? this.interval;
+        this.blockInterval = options.blockInterval ?? this.blockInterval;
     }
 
     /**
@@ -75,21 +101,27 @@ export default class DebounceHelper {
      */
     process() {
         const handle = () => {
-            if (this._blocked) {
-                this._calledWhenBlocked = true;
+            if (this.blocked) {
+                this.blockedCallCount ++;
+
+                return;
+            }
+
+            if (this.blockedInProcess) {
+                this.calledWhenProcessBlocked = true;
 
                 return;
             }
 
             this.handler(arguments);
 
-            this._blocked = true;
+            this.blockedInProcess = true;
 
             setTimeout(() => {
-                const reRun = this._calledWhenBlocked;
+                const reRun = this.calledWhenProcessBlocked;
 
-                this._blocked = false;
-                this._calledWhenBlocked = false;
+                this.blockedInProcess = false;
+                this.calledWhenProcessBlocked = false;
 
                 if (reRun) {
                     handle();
@@ -99,4 +131,27 @@ export default class DebounceHelper {
 
         handle();
     }
+
+    /**
+     * Block for a while.
+     *
+     * @since 9.2.0
+     */
+    block() {
+        this.blocked = true;
+
+        if (this.blockTimeoutId) {
+            clearTimeout(this.blockTimeoutId);
+        }
+
+        this.blockTimeoutId = setTimeout(() => {
+            this.blocked = false;
+            const toProcess = this.blockedCallCount > 1;
+            this.blockedCallCount = 0;
+
+            if (toProcess) {
+                this.process();
+            }
+        }, this.blockInterval)
+    }
 }