diff --git a/lib/isdntools.c b/lib/isdntools.c
index b0b3dedb..8453b786 100644
--- a/lib/isdntools.c
+++ b/lib/isdntools.c
@@ -1,4 +1,4 @@
-/* $Id: isdntools.c,v 1.20 1998/05/11 19:43:49 luethje Exp $
+/* $Id: isdntools.c,v 1.21 1998/06/07 21:03:26 akool Exp $
  *
  * ISDN accounting for isdn4linux. (Utilities)
  *
@@ -19,6 +19,9 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
  * $Log: isdntools.c,v $
+ * Revision 1.21  1998/06/07 21:03:26  akool
+ * Renamed old to new zone-names (CityCall, RegioCall, GermanCall, GlobalCall)
+ *
  * Revision 1.20  1998/05/11 19:43:49  luethje
  * Some changes for "vorwahlen.dat"
  *
@@ -1020,10 +1023,10 @@ const char* area_diff_string(char* number1, char* number2)
 {
 	switch(area_diff(number1,number2))
 	{
-		case AREA_LOCAL :	return "Nahbereich"; break;
-		case AREA_R50   :	return "Region 50"; break;
-		case AREA_FAR   :	return "Fernzone"; break;
-		case AREA_ABROAD:	return "Ausland"; break;
+		case AREA_LOCAL :	return "CityCall";   break;
+		case AREA_R50   :	return "RegioCall";  break;
+		case AREA_FAR   :	return "GermanCall"; break;
+		case AREA_ABROAD:	return "GlobalCall"; break;
 		default         :	break;
 	}