From f1650b1b6ecb7e677bf47cde760d923518769d4b Mon Sep 17 00:00:00 2001
From: markusbloch <markusbloch@2b470e98-0d58-463d-a4d8-8e2adae1ed80>
Date: Sat, 1 Nov 2014 17:23:29 +0000
Subject: [PATCH] FB_CALLMONITOR: fixing "use of uninitialized value" when a
 active call disconnects right after FHEM startup

git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@6852 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/72_FB_CALLMONITOR.pm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fhem/FHEM/72_FB_CALLMONITOR.pm b/fhem/FHEM/72_FB_CALLMONITOR.pm
index 00b91f4a9..dde000327 100755
--- a/fhem/FHEM/72_FB_CALLMONITOR.pm
+++ b/fhem/FHEM/72_FB_CALLMONITOR.pm
@@ -268,9 +268,9 @@ FB_CALLMONITOR_Read($)
         {
             $hash->{helper}{TEMP}{$array[2]}{call_duration} = $array[3];
         
-            if($hash->{helper}{TEMP}{$array[2]}{direction} eq "incoming" and $array[3] eq "0")
+            if(exists($hash->{helper}{TEMP}{$array[2]}{direction}) and exists($hash->{helper}{TEMP}{$array[2]}{external_number}) and $hash->{helper}{TEMP}{$array[2]}{direction} eq "incoming" and $array[3] eq "0")
             {
-                $hash->{helper}{TEMP}{$array[2]}{missed_call} = $hash->{helper}{TEMP}{$array[2]}{external_number}.($hash->{helper}{TEMP}{$array[2]}{external_name} ne "unknown" ? " (".$hash->{helper}{TEMP}{$array[2]}{external_name}.")" : "");
+                $hash->{helper}{TEMP}{$array[2]}{missed_call} = $hash->{helper}{TEMP}{$array[2]}{external_number}.(exists($hash->{helper}{TEMP}{$array[2]}{external_name}) and $hash->{helper}{TEMP}{$array[2]}{external_name} ne "unknown" ? " (".$hash->{helper}{TEMP}{$array[2]}{external_name}.")" : "");
                 $hash->{helper}{TEMP}{$array[2]}{missed_call_line} = $hash->{helper}{TEMP}{$array[2]}{internal_number};
             }
         }