diff --git a/fhem/FHEM/72_FB_CALLMONITOR.pm b/fhem/FHEM/72_FB_CALLMONITOR.pm
index 7189afaa5..bbb5652fc 100755
--- a/fhem/FHEM/72_FB_CALLMONITOR.pm
+++ b/fhem/FHEM/72_FB_CALLMONITOR.pm
@@ -553,6 +553,8 @@ FB_CALLMONITOR_Read($)
             delete($hash->{helper}{TEMP}{$array[2]});
         } 
     }
+    
+    $hash->{PARTIAL} = $buffer;
 }
 
 #####################################