diff --git a/linphone-desktop/src/app/paths/Paths.cpp b/linphone-desktop/src/app/paths/Paths.cpp
index f0f964795..1fae7ce9c 100644
--- a/linphone-desktop/src/app/paths/Paths.cpp
+++ b/linphone-desktop/src/app/paths/Paths.cpp
@@ -40,6 +40,7 @@
 #define PATH_CALL_HISTORY_LIST "/call-history.db"
 #define PATH_CONFIG "/linphonerc"
 #define PATH_FACTORY_CONFIG "/linphonerc-factory"
+#define PATH_ROOT_CA "/rootca.pem"
 #define PATH_FRIENDS_LIST "/friends.db"
 #define PATH_MESSAGE_HISTORY_LIST "/message-history.db"
 #define PATH_ZRTP_DATA "/zrtp-lime.db"
@@ -100,50 +101,56 @@ inline string getWritableFilePath (const QString &filename) {
   return getReadableFilePath(filename);
 }
 
-static QString getAppPackageDataDirpath () {
+// -----------------------------------------------------------------------------
+
+inline QString getAppPackageDataDirpath () {
   QDir dir(QCoreApplication::applicationDirPath());
   if (dir.dirName() == "MacOS") {
     dir.cdUp();
     dir.cd("Resources");
-  } else {
+  } else
     dir.cdUp();
-  }
+
   dir.cd("share/linphone");
   return dir.absolutePath();
 }
 
-static QString getAppPackageMsPluginsDirpath () {
+inline QString getAppPackageMsPluginsDirpath () {
   QDir dir(QCoreApplication::applicationDirPath());
   if (dir.dirName() == "MacOS") {
     dir.cdUp();
     dir.cd("Resources");
-  } else {
+  } else
     dir.cdUp();
-  }
+
   dir.cd(MSPLUGINS_DIR);
   return dir.absolutePath();
 }
 
-static QString getAppConfigFilepath () {
+inline QString getAppConfigFilepath () {
   if (QSysInfo::productType() == "macos")
     return QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation) + PATH_CONFIG;
 
   return QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation) + PATH_CONFIG;
 }
 
-static QString getAppCallHistoryFilepath () {
+inline QString getAppCallHistoryFilepath () {
   return QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation) + PATH_CALL_HISTORY_LIST;
 }
 
-static QString getAppFactoryConfigFilepath () {
+inline QString getAppFactoryConfigFilepath () {
   return getAppPackageDataDirpath() + PATH_FACTORY_CONFIG;
 }
 
-static QString getAppFriendsFilepath () {
+inline QString getAppRootCaFilepath () {
+  return getAppPackageDataDirpath() + PATH_ROOT_CA;
+}
+
+inline QString getAppFriendsFilepath () {
   return QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation) + PATH_FRIENDS_LIST;
 }
 
-static QString getAppMessageHistoryFilepath () {
+inline QString getAppMessageHistoryFilepath () {
   return QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation) + PATH_MESSAGE_HISTORY_LIST;
 }
 
@@ -157,6 +164,10 @@ string Paths::getCallHistoryFilepath () {
   return getWritableFilePath(getAppCallHistoryFilepath());
 }
 
+string Paths::getCapturesDirpath () {
+  return getWritableDirectoryPath(QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation) + PATH_CAPTURES);
+}
+
 string Paths::getConfigFilepath (const QString &config_path) {
   if (!config_path.isEmpty())
     return getWritableFilePath(QFileInfo(config_path).absoluteFilePath());
@@ -188,12 +199,16 @@ string Paths::getPackageMsPluginsDirpath () {
   return getReadableDirectoryPath(getAppPackageMsPluginsDirpath());
 }
 
+string Paths::getRootCaFilepath () {
+  return getReadableFilePath(getAppRootCaFilepath());
+}
+
 string Paths::getThumbnailsDirpath () {
   return getWritableDirectoryPath(QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation) + PATH_THUMBNAILS);
 }
 
-string Paths::getCapturesDirpath () {
-  return getWritableDirectoryPath(QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation) + PATH_CAPTURES);
+string Paths::getUserCertificatesDirpath () {
+  return getWritableDirectoryPath(QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation) + PATH_USER_CERTIFICATES);
 }
 
 string Paths::getZrtpDataFilepath () {
@@ -204,10 +219,6 @@ string Paths::getZrtpSecretsFilepath () {
   return getWritableFilePath(QStandardPaths::writableLocation(QStandardPaths::CacheLocation) + PATH_ZRTP_SECRETS);
 }
 
-string Paths::getUserCertificatesDirpath () {
-  return getWritableDirectoryPath(QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation) + PATH_USER_CERTIFICATES);
-}
-
 // -----------------------------------------------------------------------------
 
 static void migrateFile (const QString &old_path, const QString &new_path) {
diff --git a/linphone-desktop/src/app/paths/Paths.hpp b/linphone-desktop/src/app/paths/Paths.hpp
index d6df9f495..d0fe09e5c 100644
--- a/linphone-desktop/src/app/paths/Paths.hpp
+++ b/linphone-desktop/src/app/paths/Paths.hpp
@@ -31,19 +31,18 @@
 
 namespace Paths {
   std::string getAvatarsDirpath ();
-  std::string getCapturesDirpath ();
-  std::string getLogsDirpath ();
-  std::string getThumbnailsDirpath ();
-  std::string getUserCertificatesDirpath ();
-
-  std::string getPackageDataDirpath ();
-  std::string getPackageMsPluginsDirpath ();
-
   std::string getCallHistoryFilepath ();
+  std::string getCapturesDirpath ();
   std::string getConfigFilepath (const QString &config_path = QString());
   std::string getFactoryConfigFilepath ();
   std::string getFriendsListFilepath ();
+  std::string getLogsDirpath ();
   std::string getMessageHistoryFilepath ();
+  std::string getPackageDataDirpath ();
+  std::string getPackageMsPluginsDirpath ();
+  std::string getRootCaFilepath ();
+  std::string getThumbnailsDirpath ();
+  std::string getUserCertificatesDirpath ();
   std::string getZrtpDataFilepath ();
   std::string getZrtpSecretsFilepath ();
 
diff --git a/linphone-desktop/src/components/contacts/ContactsListProxyModel.cpp b/linphone-desktop/src/components/contacts/ContactsListProxyModel.cpp
index 51fbe4a10..689f27acc 100644
--- a/linphone-desktop/src/components/contacts/ContactsListProxyModel.cpp
+++ b/linphone-desktop/src/components/contacts/ContactsListProxyModel.cpp
@@ -146,6 +146,6 @@ float ContactsListProxyModel::computeContactWeight (const ContactModel *contact)
 void ContactsListProxyModel::setConnectedFilter (bool use_connected_filter) {
   if (use_connected_filter != m_use_connected_filter) {
     m_use_connected_filter = use_connected_filter;
-    invalidateFilter();
+    invalidate();
   }
 }
diff --git a/linphone-desktop/src/components/core/CoreManager.cpp b/linphone-desktop/src/components/core/CoreManager.cpp
index 55c29e343..484a13efc 100644
--- a/linphone-desktop/src/components/core/CoreManager.cpp
+++ b/linphone-desktop/src/components/core/CoreManager.cpp
@@ -99,6 +99,8 @@ void CoreManager::setOtherPaths () {
   m_core->setZrtpCacheDatabasePath(Paths::getZrtpDataFilepath());
 
   m_core->setUserCertificatesPath(Paths::getUserCertificatesDirpath());
+
+  m_core->setRootCa(Paths::getRootCaFilepath());
 }
 
 void CoreManager::setResourcesPaths () {