Hi Guys, I guess I have a little confusion here between inbound esl and outbound esl. *My Goal:* What I am trying to do is detect if the call is being transferred and notify the caller about it. *My Scenario:* 1- I have an application based on SIP.js client that makes outbound calls via a registered SIP trunk on my Freeswitch box. I upload a list of phone numbers to call and hit Launch button. 2- Some calls can be transferred by the callee endpoint. I want to detect this fact. 3- According to my research, I can do this using Event Socket library. 4- To detect if there is a transfer, I can control the channel variable RDNIS or TRANSFER_TIME. If there is a transfer these variables are not empty. 5- Once I detect there is a transfer I want to send a NOTIFY packet to the client. *My confusion is the following:* I don't know whether to use an Outbound socket connection or an Inbound Connection. I tried to do this with outbound connection as follows: <condition field="destination_number" expression="^1703$"> <action application="set" data="socket_resume=true"/> <action application="socket" data="127.0.0.1:8084 async"/> <action application="bridge" data="sofia/gateway/mygateway/$1"/> </condition> I have a perl server listening on port 8084/tcp. In this perl script I subscribe for CHANNEL_ANSWER Events and I filter by the call uuid. The problem is when I call the socket connection, the bridge application never executes. How am I supposed to listen for a specific event and make a bridge call? Is what I am doing wrong. Please correct me. Thank you for your support. Kind regards.