From f68bdec57b7fd1cd6ea1102741659dcbf47f3a16 Mon Sep 17 00:00:00 2001
From: Benjamin Reis <benjamin.reis@belledonne-communications.com>
Date: Wed, 3 Oct 2018 17:14:29 +0200
Subject: [PATCH] fix crash

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

diff --git a/Classes/LinphoneAppDelegate.m b/Classes/LinphoneAppDelegate.m
index f48979be3..ca5863cff 100644
--- a/Classes/LinphoneAppDelegate.m
+++ b/Classes/LinphoneAppDelegate.m
@@ -685,6 +685,9 @@
 															   userInfo:sheet
 																repeats:NO];
 		} else if ([response.notification.request.content.categoryIdentifier isEqual:@"zrtp_request"]) {
+			if (!call)
+				return;
+			
 			NSString *code = [NSString stringWithUTF8String:linphone_call_get_authentication_token(call)];
 			NSString *myCode;
 			NSString *correspondantCode;