Hai ,
I am using freeswitch in proxy mode .
I configured my freeswitch dialplan like this ( http://wiki.freeswitch.org/wiki/Proxy_Media )
<action application="set" data="proxy_media=true"/>
<action application="bridge" data="user/@192.168.174.23"/>
In my sip profile i made inbound-proxy-media equals true. When i am calling B from A and i am putting A side hold ,B side am able to get Music on hold ,then from A side am making one Blind transfer to C . This time freeswitch processing the refer and it is sending BYE to B and it is not furthur porcessing INVITE to C . Is there anything required to add more in configuration .