diff --git a/fhem/FHEM/72_FB_CALLMONITOR.pm b/fhem/FHEM/72_FB_CALLMONITOR.pm
index b4f79b4ad..dadd54686 100755
--- a/fhem/FHEM/72_FB_CALLMONITOR.pm
+++ b/fhem/FHEM/72_FB_CALLMONITOR.pm
@@ -26,7 +26,6 @@ FB_CALLMONITOR_Initialize($)
   require "$attr{global}{modpath}/FHEM/DevIo.pm";
 
 # Provider
-  $hash->{SetFn}   = "FB_CALLMONITOR_Set";
   $hash->{ReadFn}  = "FB_CALLMONITOR_Read";  
   $hash->{ReadyFn} = "FB_CALLMONITOR_Ready";
   $hash->{DefFn}   = "FB_CALLMONITOR_Define";
@@ -73,18 +72,6 @@ FB_CALLMONITOR_Undef($$)
 
 
 
-#####################################
-# Nothing can be set
-sub
-FB_CALLMONITOR_Set($@)
-{
-  my ($hash, @a) = @_;
-
-
-  return "Set command is not supported by this module";
-}
-
-
 #####################################
 # No get commands possible, as we just receive the events from the FritzBox.
 sub