[Freeswitch-users] Attended Transfer with one-way audio

Hi All, I'm facing a strange behaviour in FS after a Attended Transfer. For the A leg listen the C leg, C needs to press some DTMF key. Otherwise only C leg can listen A leg. My scenario is: A (external) ---> TDM/SIP Gateway ---> FS ---> B (extension) ---> Attended Transfer ---> C (extension). Both extensions are SIP Phones registered in FS. If the transfer is Blind, the audio works fine. Other test: If the A leg is also a local extension, the audio on Attended Transfer works fine too. An important point is that all transfers are made pressing "Flash" key in SIP Phone not by att_xfer in Dialplan. So, any clue to start? Thank you, Alex. <http://pt.slideshare.net/marketingteclan> <http://blog.teclan.com.br/>