Index: zaptel.conf.sample
===================================================================
RCS file: /usr/cvsroot/zaptel/zaptel.conf.sample,v
retrieving revision 1.13.2.1
diff -u -r1.13.2.1 zaptel.conf.sample
--- zaptel.conf.sample	29 Oct 2004 17:14:40 -0000	1.13.2.1
+++ zaptel.conf.sample	12 May 2005 16:29:10 -0000
@@ -12,6 +12,10 @@
 # source, then give it a value of "1".  For a secondary, use "2", and so on.
 # To not use this as a sync source, just use "0"
 #
+# clock = 0 means internal timing
+# clock = 1 means recovered from this span
+# clock = 2 means recovered from this span if the span with clock=1 is down
+#
 # The line build-out (or LBO) is an integer, from the following table:
 # 0: 0 db (CSU) / 0-133 feet (DSX-1)
 # 1: 133-266 feet (DSX-1)