From 43ea47bb83100b22b4672526b32b79689ddec2c9 Mon Sep 17 00:00:00 2001
From: markusbloch <>
Date: Mon, 14 Oct 2013 21:17:40 +0000
Subject: [PATCH] FB_CALLMONITOR: fixing use of unitialized value warnings

git-svn-id: https://svn.fhem.de/fhem/trunk/fhem@4044 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 FHEM/72_FB_CALLMONITOR.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/FHEM/72_FB_CALLMONITOR.pm b/FHEM/72_FB_CALLMONITOR.pm
index 81895830b..304b3d755 100755
--- a/FHEM/72_FB_CALLMONITOR.pm
+++ b/FHEM/72_FB_CALLMONITOR.pm
@@ -230,7 +230,7 @@ FB_CALLMONITOR_Read($)
    }
 
    # Remove trailing hash sign and everything afterwards
-   $external_number =~ s/#.*$//;
+   $external_number =~ s/#.*$// if(defined($external_number);
   
    $reverse_search = FB_CALLMONITOR_reverseSearch($hash, $external_number) if(defined($external_number) and AttrVal($name, "reverse-search", "none") ne "none");