diff --git a/linphone-desktop/assets/languages/en.ts b/linphone-desktop/assets/languages/en.ts
index 56ddb7467..d28e5bb8a 100644
--- a/linphone-desktop/assets/languages/en.ts
+++ b/linphone-desktop/assets/languages/en.ts
@@ -363,6 +363,14 @@ Server url not configured.</translation>
         <source>conferenceManagerDescription</source>
         <translation>Manage participants to your conference.</translation>
     </message>
+    <message>
+        <source>cancel</source>
+        <translation>CANCEL</translation>
+    </message>
+    <message>
+        <source>confirm</source>
+        <translation>START</translation>
+    </message>
 </context>
 <context>
     <name>ConfirmDialog</name>
diff --git a/linphone-desktop/assets/languages/fr.ts b/linphone-desktop/assets/languages/fr.ts
index 509d65a66..4e9643974 100644
--- a/linphone-desktop/assets/languages/fr.ts
+++ b/linphone-desktop/assets/languages/fr.ts
@@ -363,6 +363,14 @@ Url du serveur non configurée.</translation>
         <source>conferenceManagerDescription</source>
         <translation>Gérer les participants de votre conférence.</translation>
     </message>
+    <message>
+        <source>cancel</source>
+        <translation>ANNULER</translation>
+    </message>
+    <message>
+        <source>confirm</source>
+        <translation>LANCER</translation>
+    </message>
 </context>
 <context>
     <name>ConfirmDialog</name>
diff --git a/linphone-desktop/src/components/conference/ConferenceAddModel.cpp b/linphone-desktop/src/components/conference/ConferenceAddModel.cpp
index f4406ae6d..5f43f442c 100644
--- a/linphone-desktop/src/components/conference/ConferenceAddModel.cpp
+++ b/linphone-desktop/src/components/conference/ConferenceAddModel.cpp
@@ -106,6 +106,19 @@ bool ConferenceAddModel::removeFromConference (const QString &sipAddress) {
 
 // -----------------------------------------------------------------------------
 
+void ConferenceAddModel::update () {
+  list<shared_ptr<linphone::Address> > linphoneAddresses;
+  for (const auto &map : mRefs)
+    linphoneAddresses.push_back(map->value("__linphoneAddress").value<shared_ptr<linphone::Address> > ());
+
+  mConferenceHelperModel->mConference->inviteParticipants(
+    linphoneAddresses,
+    CoreManager::getInstance()->getCore()->createCallParams(nullptr)
+  );
+}
+
+// -----------------------------------------------------------------------------
+
 void ConferenceAddModel::addToConference (const std::shared_ptr<linphone::Address> &linphoneAddress) {
   QString sipAddress = ::Utils::linphoneStringToQString(linphoneAddress->asStringUriOnly());
   QVariantMap map;
diff --git a/linphone-desktop/src/components/conference/ConferenceAddModel.hpp b/linphone-desktop/src/components/conference/ConferenceAddModel.hpp
index 55b73dcfc..8cc4c9e49 100644
--- a/linphone-desktop/src/components/conference/ConferenceAddModel.hpp
+++ b/linphone-desktop/src/components/conference/ConferenceAddModel.hpp
@@ -50,6 +50,8 @@ public:
   Q_INVOKABLE bool addToConference (const QString &sipAddress);
   Q_INVOKABLE bool removeFromConference (const QString &sipAddress);
 
+  Q_INVOKABLE void update ();
+
   bool contains (const QString &sipAddress) const {
     return mSipAddresses.contains(sipAddress);
   }
diff --git a/linphone-desktop/src/components/conference/ConferenceHelperModel.hpp b/linphone-desktop/src/components/conference/ConferenceHelperModel.hpp
index e5e231ac6..00e5c73e2 100644
--- a/linphone-desktop/src/components/conference/ConferenceHelperModel.hpp
+++ b/linphone-desktop/src/components/conference/ConferenceHelperModel.hpp
@@ -37,6 +37,8 @@ namespace linphone {
 }
 
 class ConferenceHelperModel : public QSortFilterProxyModel {
+  friend class ConferenceAddModel;
+
   Q_OBJECT;
 
   Q_PROPERTY(ConferenceAddModel * toAdd READ getConferenceAddModel CONSTANT);
@@ -47,8 +49,6 @@ public:
 
   QHash<int, QByteArray> roleNames () const override;
 
-  void update ();
-
   Q_INVOKABLE void setFilter (const QString &pattern);
 
 protected:
diff --git a/linphone-desktop/ui/views/App/Calls/ConferenceManager.qml b/linphone-desktop/ui/views/App/Calls/ConferenceManager.qml
index 243ed7da0..707716158 100644
--- a/linphone-desktop/ui/views/App/Calls/ConferenceManager.qml
+++ b/linphone-desktop/ui/views/App/Calls/ConferenceManager.qml
@@ -8,7 +8,24 @@ import App.Styles 1.0
 
 // =============================================================================
 
-ConfirmDialog {
+DialogPlus {
+  buttons: [
+    TextButtonA {
+      text: qsTr('cancel')
+
+      onClicked: exit(0)
+    },
+    TextButtonB {
+      text: qsTr('confirm')
+
+      onClicked: {
+        conferenceHelperModel.toAdd.update()
+        exit(1)
+      }
+    }
+  ]
+
+  centeredButtons: true
   descriptionText: qsTr('conferenceManagerDescription')
 
   height: ConferenceManagerStyle.height