diff --git a/Classes/Swift/Chat/Views/ChatConversationViewSwift.swift b/Classes/Swift/Chat/Views/ChatConversationViewSwift.swift
index 7df488306..873a99f31 100644
--- a/Classes/Swift/Chat/Views/ChatConversationViewSwift.swift
+++ b/Classes/Swift/Chat/Views/ChatConversationViewSwift.swift
@@ -439,9 +439,9 @@ class ChatConversationViewSwift: BackActionsNavigationView, PHPickerViewControll
 	
 	func initDataSource(groupeChat: Bool, secureLevel: Bool, cChatRoom: OpaquePointer) {
 		menu.dataSource.removeAll()
-		
+		let defaultAccount = Core.getSwiftObject(cObject: LinphoneManager.getLc()).defaultAccount
 		if(groupeChat){
-			if !ChatConversationViewModel.sharedModel.chatRoom!.isReadOnly {
+			if !ChatConversationViewModel.sharedModel.chatRoom!.isReadOnly && (defaultAccount != nil) && (defaultAccount!.params!.audioVideoConferenceFactoryAddress != nil) {
 				menu.dataSource.append(VoipTexts.conference_schedule_start)
 			}
 			menu.dataSource.append(VoipTexts.dropdown_menu_chat_conversation_group_infos)
diff --git a/Classes/Swift/Util/BackActionsNavigationView.swift b/Classes/Swift/Util/BackActionsNavigationView.swift
index fbeaadd3e..4c3ea8cca 100644
--- a/Classes/Swift/Util/BackActionsNavigationView.swift
+++ b/Classes/Swift/Util/BackActionsNavigationView.swift
@@ -349,9 +349,13 @@ class BackActionsNavigationView:  UIViewController {
 	
 	func changeCallIcon(groupChat: Bool){
 		isGroupChat = groupChat
-		if(groupChat){
+		let defaultAccount = Core.getSwiftObject(cObject: LinphoneManager.getLc()).defaultAccount
+		if(groupChat && (defaultAccount != nil) && (defaultAccount!.params!.audioVideoConferenceFactoryAddress != nil)){
 			action1Button.isHidden = true
 			action1BisButton.isHidden = false
+		}else if(groupChat){
+			action1Button.isHidden = true
+			action1BisButton.isHidden = true
 		}else{
 			action1Button.isHidden = false
 			action1BisButton.isHidden = true