add sit tone to vars list

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@9925 d0543943-73ff-0310-b7d9-9358b9ac24b2

conf/vars.xml

@@ -114,6 +114,7 @@
   <X-PRE-PROCESS cmd="set" data="us-ring=%(2000, 4000, 440.0, 480.0)"/>
   <X-PRE-PROCESS cmd="set" data="fr-ring=%(1500, 3500, 440.0, 0.0)"/>
   <X-PRE-PROCESS cmd="set" data="bong-ring=v=-7;%(100,0,941.0,1477.0);v=-7;>=2;+=.1;%(1400,0,350,440)"/>
+  <X-PRE-PROCESS cmd="set" data="sit=%(274,0,913.8);%(274,0,1370.6);%(380,0,1776.7)"/>
   <!--
       Setting up your default sip provider is easy.
       Below are some values that should work in most cases.