<extension name="socket">

       <condition field="destination_number" expression="^999$">

    <action application="set" data="socket_resume=true"/>   

             <action application="socket" data="172.16.90.1:8084 async full"/>     

  <action application="info"/>   

       </condition>

     </extension>

these are executed using socket:
connect
myevents
set park_after_bridge=true
answer

playback local_stream://moh

now a new channel is originated to agent(bleg) and on answer I'm calling intercept on aleg from socket to bridge it to agent channel. if I set socket_resume=true in dialplan, after intercept both legs are stuck (dead silent). if I do not set socket_resume=true legs are bridged but execution continues through dialplan (I placed info to test this).
problem is if  socket_resume=false and agent transfers the call to 999 during the call (same socket app) call hangsup. but if socket_resume=true intercept is not working as expected but transfer is done. how can I solve this?
thanks