Missing parameter

src/freedombone

   echo '</timers>' >> /etc/sipwitch.conf
   echo '<!-- we have 2xx numbers plus space for external users -->' >> /etc/sipwitch.conf
   echo '<registry>' >> /etc/sipwitch.conf
-  echo '  <prefix>200</prefix>'
+  echo '  <prefix>200</prefix>' >> /etc/sipwitch.conf
   echo '  <range>100</range>' >> /etc/sipwitch.conf
   echo '  <keysize>77</keysize>' >> /etc/sipwitch.conf
   echo '  <mapped>200</mapped>' >> /etc/sipwitch.conf