diff --git a/fhem/CHANGED b/fhem/CHANGED
index 962fbdb27..58e258939 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,5 +1,7 @@
 # Add changes at the top of the list. Keep it in ASCII, and 80-char wide.
 # Do not insert empty lines here, update check depends on it.
+  - change:  72_FB_CALLMONITOR: delete stored FRITZ!Box password in
+             FHEM/uniqueID file upon deletion of a FB_CALLMONITOR definition
   - feature: TR064Utils.pm added
   - changed: 88_HMCCU: Improved attributes ccureadingfilter, stripnumber
   - feature: 89_FULLY: New commands for motion detection and brightness
diff --git a/fhem/FHEM/72_FB_CALLMONITOR.pm b/fhem/FHEM/72_FB_CALLMONITOR.pm
index 972d77cf0..1b5dfde6e 100755
--- a/fhem/FHEM/72_FB_CALLMONITOR.pm
+++ b/fhem/FHEM/72_FB_CALLMONITOR.pm
@@ -51,6 +51,7 @@ FB_CALLMONITOR_Initialize($)
     $hash->{SetFn}     = "FB_CALLMONITOR_Set";
     $hash->{DefFn}     = "FB_CALLMONITOR_Define";
     $hash->{RenameFn}  = "FB_CALLMONITOR_Rename";    
+    $hash->{DeleteFn}  = "FB_CALLMONITOR_Delete";  
     $hash->{UndefFn}   = "FB_CALLMONITOR_Undef";
     $hash->{AttrFn}    = "FB_CALLMONITOR_Attr";
     $hash->{NotifyFn}  = "FB_CALLMONITOR_Notify";
@@ -117,6 +118,20 @@ FB_CALLMONITOR_Undef($$)
     return undef;
 }
 
+#####################################
+# If Device is deleted, delete the password dataIf Device is renamed, copy the password data
+sub
+FB_CALLMONITOR_Delete($$)
+{
+    my ($hash, $name) = @_;  
+    
+    my $index = "FB_CALLMONITOR_".$name."_passwd";    
+    
+    setKeyValue($index, undef);
+    
+    return undef;
+}
+
 #####################################
 # If Device is renamed, copy the password data
 sub