FreeSWITCH 1.8

setting channel variables on B-legs: export and nolocal

You may want to set or override variables in dialplan, earlier, instead of resorting to last moment dialstring.

When you want to set a variable in both the current (A-leg) call and any future originated B-legs (typically originated later with one or more bridge applications) you "export" a variable (note: no single quotes to escape the variable's value string):

 <extension name="bridge_test_03"> 
      <condition field="destination_number" expression="^2910$"> 
        <action application="export" data="absolute_codec_string=PCMA,PCMU"/> 
        <action application="bridge" data="user/1011"/> 
      </condition> 
 </extension> 
 

In this specific case, we made a subtle impropriety: we exported the variable to both A-leg ...