diff --git a/app/src/main/java/org/communiquons/android/comunic/client/data/services/NotificationsService.java b/app/src/main/java/org/communiquons/android/comunic/client/data/services/NotificationsService.java
index 2a33272..a24cd1d 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/data/services/NotificationsService.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/data/services/NotificationsService.java
@@ -28,6 +28,7 @@ import static org.communiquons.android.comunic.client.ui.Constants.Notifications
 import static org.communiquons.android.comunic.client.ui.Constants.NotificationsChannels.GLOBAL_CHANNEL_DESCRIPTION;
 import static org.communiquons.android.comunic.client.ui.Constants.NotificationsChannels.GLOBAL_CHANNEL_ID;
 import static org.communiquons.android.comunic.client.ui.Constants.NotificationsChannels.GLOBAL_CHANNEL_NAME;
+import static org.communiquons.android.comunic.client.ui.Constants.PreferencesKeys.PREFERENCE_ACCELERATE_NOTIFICATIONS_REFRESH;
 
 /**
  * Notifications service
@@ -104,7 +105,10 @@ public class NotificationsService extends IntentService {
 
             try {
                 //Make a pause
-                Thread.sleep(30000);
+                int secs = PreferencesUtils.getBoolean(
+                        this, PREFERENCE_ACCELERATE_NOTIFICATIONS_REFRESH, false) ?
+                        2 /* high frequency */ : 30 /* low frequency */;
+                Thread.sleep(secs*1000);
             } catch (InterruptedException e){
                 Thread.currentThread().interrupt();
             }
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/data/utils/PreferencesUtils.java b/app/src/main/java/org/communiquons/android/comunic/client/data/utils/PreferencesUtils.java
index f6db42c..7ff1c69 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/data/utils/PreferencesUtils.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/data/utils/PreferencesUtils.java
@@ -27,4 +27,15 @@ public class PreferencesUtils {
         return sharedPrefs.getBoolean(key, def);
     }
 
+    /**
+     * Set (save) a new boolean preference
+     *
+     * @param context Application context
+     * @param key The name of the key to change
+     * @param value New value for the key
+     */
+    public static void setBoolean(Context context, String key, boolean value){
+        PreferenceManager.getDefaultSharedPreferences(context)
+                .edit().putBoolean(key, value).apply();
+    }
 }
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/Constants.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/Constants.java
index 0d1d374..a8787fc 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/Constants.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/Constants.java
@@ -112,4 +112,22 @@ public final class Constants {
         public static final int CALL_NOTIFICATION_ID = 1;
 
     }
+
+
+    /**
+     * Preferences keys
+     */
+    public final class PreferencesKeys {
+
+        /**
+         * Enable debug mode
+         */
+        public static final String PREFERENCE_ENABLE_DEBUG_MODE = "enable_debug_mode";
+
+        /**
+         * Accelerate notifications refresh
+         */
+        public static final String PREFERENCE_ACCELERATE_NOTIFICATIONS_REFRESH
+                = "accelerate_notifications_refresh";
+    }
 }
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/MainActivity.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/MainActivity.java
index 3419cb6..e1b8a7b 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/MainActivity.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/MainActivity.java
@@ -66,6 +66,8 @@ import java.util.Objects;
 
 import static org.communiquons.android.comunic.client.ui.Constants.IntentRequestCode.MAIN_ACTIVITY_GLOBAL_SEARCH_INTENT;
 import static org.communiquons.android.comunic.client.ui.Constants.IntentRequestCode.MAIN_ACTIVITY_SEARCH_USER_INTENT;
+import static org.communiquons.android.comunic.client.ui.Constants.PreferencesKeys.PREFERENCE_ACCELERATE_NOTIFICATIONS_REFRESH;
+import static org.communiquons.android.comunic.client.ui.Constants.PreferencesKeys.PREFERENCE_ENABLE_DEBUG_MODE;
 
 
 /**
@@ -238,9 +240,17 @@ public class MainActivity extends BaseActivity implements
         getMenuInflater().inflate(R.menu.main_menu, menu);
 
         //Check if the debug menu has to be shown or not
-        if (PreferencesUtils.getBoolean(this, "enable_debug_mode", false)) {
+        if (PreferencesUtils.getBoolean(this, PREFERENCE_ENABLE_DEBUG_MODE, false)) {
             SubMenu debugMenu = menu.addSubMenu(R.string.menu_debug_title);
             getMenuInflater().inflate(R.menu.debug_menu, debugMenu);
+
+            debugMenu.findItem(R.id.action_accelerate_notifications_refresh).setChecked(
+                    PreferencesUtils.getBoolean(
+                            this,
+                            PREFERENCE_ACCELERATE_NOTIFICATIONS_REFRESH,
+                            false
+                    )
+            );
         }
 
         return true;
@@ -293,6 +303,19 @@ public class MainActivity extends BaseActivity implements
             return true;
         }
 
+        //Check if we have to accelerate notifications refresh
+        if(id == R.id.action_accelerate_notifications_refresh){
+
+            boolean enable = !PreferencesUtils.getBoolean(
+                    this, PREFERENCE_ACCELERATE_NOTIFICATIONS_REFRESH, false);
+
+            PreferencesUtils.setBoolean(
+                    this,
+                    PREFERENCE_ACCELERATE_NOTIFICATIONS_REFRESH,
+                    enable);
+            return true;
+        }
+
         return super.onOptionsItemSelected(item);
 
     }
diff --git a/app/src/main/res/menu/debug_menu.xml b/app/src/main/res/menu/debug_menu.xml
index 79b228d..a7172b5 100644
--- a/app/src/main/res/menu/debug_menu.xml
+++ b/app/src/main/res/menu/debug_menu.xml
@@ -1,6 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <item
+        android:id="@+id/action_accelerate_notifications_refresh"
+        android:title="@string/action_accelerate_notifications_refresh"
+        android:checkable="true"/>
+
     <item
         android:id="@+id/action_clear_local_db"
         android:title="@string/menu_clear_local_db"/>
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index a9ba16f..13ec0b6 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -324,4 +324,5 @@
     <string name="notification_call_accept">Répondre</string>
     <string name="notification_call_reject">Rejeter</string>
     <string name="notification_call_content">%s vous appelle.</string>
+    <string name="action_accelerate_notifications_refresh">Accélérer le rafraîchissement des notifications</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 08ccabf..5e97afd 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -323,4 +323,5 @@
     <string name="notification_call_accept">Respond</string>
     <string name="notification_call_reject">Reject call</string>
     <string name="notification_call_content">%s is calling you</string>
+    <string name="action_accelerate_notifications_refresh">Accelerate notifications refresh</string>
 </resources>