diff --git a/linphone-app/src/components/core/CoreHandlers.cpp b/linphone-app/src/components/core/CoreHandlers.cpp
index 2718c1f01..092c69214 100644
--- a/linphone-app/src/components/core/CoreHandlers.cpp
+++ b/linphone-app/src/components/core/CoreHandlers.cpp
@@ -38,15 +38,6 @@
 
 using namespace std;
 
-// Schedule a function in app context.
-void scheduleFunctionInApp (function<void()> func) {
-  App *app = App::getInstance();
-  if (QThread::currentThread() != app->thread())
-    QTimer::singleShot(0, app, func);
-  else
-    func();
-}
-
 // -----------------------------------------------------------------------------
 
 CoreHandlers::CoreHandlers (CoreManager *coreManager) {
@@ -124,12 +115,21 @@ void CoreHandlers::onGlobalStateChanged (
 ) {
     Q_UNUSED(core)
     Q_UNUSED(message)
-    if( gstate == linphone::GlobalState::On)
-          emit coreStarted();
-    else if( gstate == linphone::GlobalState::Off)
-          emit coreStopped();
-    else if( gstate == linphone::GlobalState::Startup)
-          emit coreStarting();
+    switch(gstate){
+        case linphone::GlobalState::On :
+            qInfo() << "Core is running " << QString::fromStdString(message);
+            emit coreStarted();
+            break;
+        case linphone::GlobalState::Off :
+            qInfo() << "Core is stopped " << QString::fromStdString(message);
+            emit coreStopped();
+            break;
+        case linphone::GlobalState::Startup : // Usefull to start core iterations
+            qInfo() << "Core is starting " << QString::fromStdString(message);
+            emit coreStarting();
+            break;
+        default:{}
+    }
 }
 
 void CoreHandlers::onIsComposingReceived (
diff --git a/linphone-app/src/components/core/CoreManager.cpp b/linphone-app/src/components/core/CoreManager.cpp
index a39d54dc1..5318a59b8 100644
--- a/linphone-app/src/components/core/CoreManager.cpp
+++ b/linphone-app/src/components/core/CoreManager.cpp
@@ -84,8 +84,8 @@ CoreManager::CoreManager (QObject *parent, const QString &configPath) :
 
 CoreManager::~CoreManager(){
 	mCore->removeListener(mHandlers);
-	mHandlers = nullptr;// Call destructor
-	mCore = nullptr;// Call destructor
+	mHandlers = nullptr;// Ordering Call destructor just to be sure (removeListener should be enough)
+	mCore = nullptr;
 }
 
 // -----------------------------------------------------------------------------
@@ -101,7 +101,7 @@ void CoreManager::initManager(){
 	QObject::connect(mEventCountNotifier, &EventCountNotifier::eventCountChanged,this, &CoreManager::eventCountChanged);
 	migrate();
 	mStarted = true;
-	qInfo() << QStringLiteral("Core created. Enable iterate.");
+	qInfo() << QStringLiteral("CoreManager initialized");
 	emit managerInitialized();
 }
 
@@ -164,16 +164,16 @@ void CoreManager::uninit () {
   if (mInstance) {
     connect(mInstance, &QObject::destroyed, []()mutable{
         mInstance = nullptr;
-        qInfo() << "Linphone Core is destroyed";
+        qInfo() << "Core is correctly destroyed";
     });
-    QObject::connect(mInstance->getHandlers().get(), &CoreHandlers::coreStopped, mInstance, &QObject::deleteLater);
+    QObject::connect(mInstance->getHandlers().get(), &CoreHandlers::coreStopped, mInstance, &QObject::deleteLater); // Delete data only when the core is Off
 
     mInstance->lockVideoRender();// Stop do iterations. We have to protect GUI.
     mInstance->mCore->stop();
     mInstance->unlockVideoRender();
     QTest::qWaitFor([&]() {return mInstance == nullptr;},10000);
     if( mInstance){
-        qWarning() << "Linphone Core couldn't destroy in time. It may lead to have multiple session of Linphone Core";
+        qWarning() << "Core couldn't destroy in time. It may lead to have multiple session of Core";
         mInstance = nullptr;
     }
   }
@@ -338,10 +338,12 @@ void CoreManager::startIterate(){
     mCbsTimer = new QTimer(this);
     mCbsTimer->setInterval(CbsCallInterval);
     QObject::connect(mCbsTimer, &QTimer::timeout, this, &CoreManager::iterate);
+    qInfo() << QStringLiteral("Start iterate");
     mCbsTimer->start();
 }
 
 void CoreManager::stopIterate(){
+    qInfo() << QStringLiteral("Stop iterate");
     mCbsTimer->stop();
     mCbsTimer->deleteLater();// allow the timer to continue its stuff
     mCbsTimer = nullptr;