Hello

My dialplan like this: 

  <extension name="test">

     <condition field="destination_number" expresion="^(100)$">

       <action application="bridge" data="sofia/gateway/gw/100|sofia/gateway/gw1/100"/>

     </condition>

   </extension>

I want to know which gateway was using by the call, gw or gw1? is there any variables to use?

Thanks!