diff --git a/linphone-app/src/components/call/CallModel.cpp b/linphone-app/src/components/call/CallModel.cpp
index bcb6f62ae..eebb6a0c2 100644
--- a/linphone-app/src/components/call/CallModel.cpp
+++ b/linphone-app/src/components/call/CallModel.cpp
@@ -187,7 +187,6 @@ void CallModel::acceptWithVideo () {
 
 void CallModel::terminate () {
   CoreManager *core = CoreManager::getInstance();
-
   core->lockVideoRender();
   mCall->terminate();
   core->unlockVideoRender();
@@ -365,10 +364,10 @@ void CallModel::accept (bool withVideo) {
 // -----------------------------------------------------------------------------
 
 void CallModel::updateIsInConference () {
-  if (mIsInConference != mCall->getParams()->getLocalConferenceMode()) {
+  if (mIsInConference != mCall->getCurrentParams()->getLocalConferenceMode()) {
     mIsInConference = !mIsInConference;
-    emit isInConferenceChanged(mIsInConference);
   }
+  emit isInConferenceChanged(mIsInConference);
 }
 
 // -----------------------------------------------------------------------------
diff --git a/linphone-app/src/components/calls/CallsListModel.cpp b/linphone-app/src/components/calls/CallsListModel.cpp
index e9b394c5c..d50ae296a 100644
--- a/linphone-app/src/components/calls/CallsListModel.cpp
+++ b/linphone-app/src/components/calls/CallsListModel.cpp
@@ -239,7 +239,7 @@ void CallsListModel::addCall (const shared_ptr<linphone::Call> &call) {
   }
 
   CallModel *callModel = new CallModel(call);
-  qInfo() << QStringLiteral("Add call:") << callModel;
+  qInfo() << QStringLiteral("Add call:") << callModel->getFullLocalAddress() << callModel->getFullPeerAddress();
   App::getInstance()->getEngine()->setObjectOwnership(callModel, QQmlEngine::CppOwnership);
 
   // This connection is (only) useful for `CallsListProxyModel`.
diff --git a/linphone-app/src/components/conference/ConferenceAddModel.cpp b/linphone-app/src/components/conference/ConferenceAddModel.cpp
index 898597314..aa856fdff 100644
--- a/linphone-app/src/components/conference/ConferenceAddModel.cpp
+++ b/linphone-app/src/components/conference/ConferenceAddModel.cpp
@@ -42,7 +42,7 @@ ConferenceHelperModel::ConferenceAddModel::ConferenceAddModel (QObject *parent)
   );
 
   for (const auto &call : coreManager->getCore()->getCalls()) {
-    if (call->getParams()->getLocalConferenceMode())
+    if (call->getCurrentParams()->getLocalConferenceMode())
       addToConference(call->getRemoteAddress());
   }
 }
@@ -134,33 +134,41 @@ bool ConferenceHelperModel::ConferenceAddModel::removeFromConference (const QStr
 // -----------------------------------------------------------------------------
 
 void ConferenceHelperModel::ConferenceAddModel::update () {
-  list<shared_ptr<linphone::Address>> linphoneAddresses;
+  shared_ptr<linphone::Conference> conference = mConferenceHelperModel->mCore->getConference();
+  if(!conference){
+    conference = mConferenceHelperModel->mCore->createConferenceWithParams(mConferenceHelperModel->mCore->createConferenceParams());
+  }
+  auto currentCalls = CoreManager::getInstance()->getCore()->getCalls();
+  list<shared_ptr<linphone::Address>> allLinphoneAddresses;
+
+//1) Invite participants first to avoid removing conference if empty
   for (const auto &map : mRefs) {
     shared_ptr<linphone::Address> linphoneAddress = map->value("__linphoneAddress").value<shared_ptr<linphone::Address>>();
     Q_CHECK_PTR(linphoneAddress);
-    linphoneAddresses.push_back(linphoneAddress);
+    allLinphoneAddresses.push_back(linphoneAddress);
   }
+  if( allLinphoneAddresses.size() > 0)
+    conference->inviteParticipants(
+      allLinphoneAddresses,
+      CoreManager::getInstance()->getCore()->createCallParams(nullptr)
+    );
 
-  shared_ptr<linphone::Conference> conference = mConferenceHelperModel->mCore->getConference();
-  if(!conference)
-    conference = mConferenceHelperModel->mCore->createConferenceWithParams(mConferenceHelperModel->mCore->createConferenceParams());
-  
-  // Remove sip addresses if necessary.
-  for (const auto &call : CoreManager::getInstance()->getCore()->getCalls()) {
-    if (!call->getParams()->getLocalConferenceMode())
-      continue;
-
-    const QString sipAddress = Utils::coreStringToAppString(call->getRemoteAddress()->asStringUriOnly());
-    if (!mSipAddresses.contains(sipAddress))
-      call->terminate();
-  }
-
-  conference->inviteParticipants(
-    linphoneAddresses,
-    CoreManager::getInstance()->getCore()->createCallParams(nullptr)
-  );
+// 2) Put in pause and remove all calls that are not in the conference list
+  for(const auto &call : CoreManager::getInstance()->getCore()->getCalls()){
+      const std::string callAddress = call->getRemoteAddress()->asStringUriOnly();
+      auto address = allLinphoneAddresses.begin();
+      while(address != allLinphoneAddresses.end() && (*address)->asStringUriOnly() != callAddress)
+        ++address;
+      if(address == allLinphoneAddresses.end()){// Not in conference list :  put in pause and remove it from conference if it's the case
+        call->pause();
+        if( call->getParams()->getLocalConferenceMode() ){// Remove conference if it is not yet requested
+          CoreManager::getInstance()->getCore()->removeFromConference(call);
+        }
+      }
+    }
 }
 
+
 // -----------------------------------------------------------------------------
 
 void ConferenceHelperModel::ConferenceAddModel::addToConferencePrivate (const shared_ptr<linphone::Address> &linphoneAddress) {
diff --git a/linphone-app/src/components/conference/ConferenceModel.cpp b/linphone-app/src/components/conference/ConferenceModel.cpp
index cb9c37350..324d027ae 100644
--- a/linphone-app/src/components/conference/ConferenceModel.cpp
+++ b/linphone-app/src/components/conference/ConferenceModel.cpp
@@ -50,7 +50,7 @@ ConferenceModel::ConferenceModel (QObject *parent) : QSortFilterProxyModel(paren
     CoreManager::getInstance()->getHandlers().get(), &CoreHandlers::callStateChanged,
     this, [this] { emit conferenceChanged(); });
 }
-
+// Show all paraticpants thar should be, will be or are still in conference
 bool ConferenceModel::filterAcceptsRow (int sourceRow, const QModelIndex &sourceParent) const {
   const QModelIndex index = sourceModel()->index(sourceRow, 0, sourceParent);
   const CallModel *callModel = index.data().value<CallModel *>();
@@ -63,7 +63,7 @@ void ConferenceModel::terminate () {
   core->terminateConference();
 
   for (const auto &call : core->getCalls()) {
-    if (call->getParams()->getLocalConferenceMode())
+    if (call->getParams()->getLocalConferenceMode())// Terminate all call where participants are or will be in conference
       call->terminate();
   }
 }
diff --git a/linphone-sdk b/linphone-sdk
index 752772024..5fae77a2f 160000
--- a/linphone-sdk
+++ b/linphone-sdk
@@ -1 +1 @@
-Subproject commit 75277202452c3af9b61f3c1e238e9d7c1bb72473
+Subproject commit 5fae77a2f789c4e61972b5b706359b9cc2404acd