Is it possible to detect if the call is being transferred on FreeSWITCH?

Question

I want to detect if the call is being transferred in FreeSWITCH.

For e.g If I am now calling someone and that someone transfers me to an other person, I want to know during the call if a transfer happens.

I wonder if there is in Freeswitch an event that fires upon call transfer or is there a channel variable or should I test the transfer time?

Any idea how to do it?

Thank you.

Answer 1

its possible to detect transfer in FreeSWITCH like user A call user B ,user B answer the call,user B transfer the call to c then following things happen:

• Phone B sends a REFER message to Phone A. The message contains the following information:

  • Refer-To: C
  
  • Referred-By: B
  

• The message indicates that Phone A should send an INVITE request to Phone C.