diff --git a/std/player/comm.c b/std/player/comm.c
index 669ef40..8cdccdd 100644
--- a/std/player/comm.c
+++ b/std/player/comm.c
@@ -1187,7 +1187,7 @@
 
   if(!sizeof(str))
     return 0;
-  if (regmatch(str,"^[[:alpha:]]", RE_PCRE))
+  if (!regmatch(str,"^[[:digit:]]", RE_PCRE))
   {
     if (str=="aus")
           SetProp(P_ALERT, QueryProp(P_ALERT) | AL_NO_SOUND);
@@ -1245,7 +1245,7 @@
   ReceiveNotify(
     "Klingelton bei "
     + types
-    + (beep_interval ? ", alle " + beep_interval + " Sekunden." : ", immer.")
+    + (beep_interval ? ", maximal alle " + beep_interval + " Sekunden." : ", immer.")
     + (QueryProp(P_ALERT) & AL_NO_SOUND ? " Allerdings sind Toene insgesamt "
          "bei Dir abgeschaltet. (\'hilfe ton\')" : ""),
     query_verb());