diff --git a/Classes/PhoneMainView.m b/Classes/PhoneMainView.m
index 6593e6cae..b54b9a3f7 100644
--- a/Classes/PhoneMainView.m
+++ b/Classes/PhoneMainView.m
@@ -363,20 +363,22 @@ static RootViewManager *rootViewManagerInstance = nil;
 		case LinphoneCallIncomingReceived:
 			if (!CallManager.callKitEnabled) {
 				[self displayIncomingCall:call];
-			} else if ([LinphoneManager.instance lpConfigIntForKey:@"unexpected_pushkit" withDefault:0] > 3) {
-				 dispatch_async(dispatch_get_main_queue(), ^{
-					 linphone_call_decline(call, LinphoneReasonUnknown);
-					 UIAlertController *errView =
-					 [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Push token for calls is not valid anymore", nil)
+			} else if(@available(iOS 13.0, *)) {
+				if ([LinphoneManager.instance lpConfigIntForKey:@"unexpected_pushkit" withDefault:0] > 3) {
+					dispatch_async(dispatch_get_main_queue(), ^{
+						linphone_call_decline(call, LinphoneReasonUnknown);
+						UIAlertController *errView =
+						[UIAlertController alertControllerWithTitle:NSLocalizedString(@"Push token for calls is not valid anymore", nil)
 														 message:NSLocalizedString(@"Please delete all of your accounts from the server.", nil)
 												  preferredStyle:UIAlertControllerStyleAlert];
 
-					 UIAlertAction *defaultAction = [UIAlertAction actionWithTitle:@"OK"
+						UIAlertAction *defaultAction = [UIAlertAction actionWithTitle:@"OK"
 																		style:UIAlertActionStyleDefault
 																	  handler:^(UIAlertAction *action) {}];
 
-					 [errView addAction:defaultAction];
-					 [self presentViewController:errView animated:YES completion:nil];});
+						[errView addAction:defaultAction];
+						[self presentViewController:errView animated:YES completion:nil];});
+				}
 			}
 			break;
 		case LinphoneCallIncomingEarlyMedia: {