I've been meaning to add some explanation about muted... here it is

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@44366 65c4cc65-6c06-0410-ace0-fbb531ad65f3

configs/muted.conf.sample

@@ -6,6 +6,19 @@
 # First you have the host, username, and password
 # we use to connect to the asterisk system
 #
+# What is this? Well, haven't you ever wished you could automatically
+# turn down the volume on your stereo, CDPlayer, etc, when a call comes in,
+# and then return it to normal when the call ends? Well, this is a possible
+# mechanism to make this happen!
+# You have to fire up the new utils/muted, which runs as a daemon in the
+# background. This daemon connects to asterisk via a manager interface, and
+# also reads this config file from /etc/muted.conf. when the channels mentioned
+# are activated, it tweaks the sound levels on the sound card(s).
+# So, depending on the sound card, you may be able to run all your sound
+# generating devices thru your sound card, and use this mechanism to quiet
+# them down while you are on the phone. If anyone figures out how to make
+# this work with kids, please inform!!
+#
 host localhost
 user user
 pass pass