From 5cf6db0dd913f918e27d0556af6ba8a00fe5f019 Mon Sep 17 00:00:00 2001
From: Danmei Chen <danmei.chen@belledonne-communications.com>
Date: Mon, 25 May 2020 18:05:39 +0200
Subject: [PATCH] fix crash: enter background mode when linphonecore off

---
 Classes/LinphoneAppDelegate.m | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Classes/LinphoneAppDelegate.m b/Classes/LinphoneAppDelegate.m
index 456bdea36..58021e341 100644
--- a/Classes/LinphoneAppDelegate.m
+++ b/Classes/LinphoneAppDelegate.m
@@ -57,9 +57,11 @@
 
 - (void)applicationDidEnterBackground:(UIApplication *)application {
 	LOGI(@"%@", NSStringFromSelector(_cmd));
-	[LinphoneManager.instance enterBackgroundMode];
-	[LinphoneManager.instance.fastAddressBook clearFriends];
-	[CoreManager.instance stopLinphoneCore];
+	if (linphone_core_get_global_state(LC) != LinphoneGlobalOff) {
+		[LinphoneManager.instance enterBackgroundMode];
+		[LinphoneManager.instance.fastAddressBook clearFriends];
+		[CoreManager.instance stopLinphoneCore];
+	}
 }
 
 - (void)applicationWillEnterForeground:(UIApplication *)application {