[Freeswitch-users] att_xfer w/uuid

I'm trying to use xml_rpc to initiate an att_xfer on channel A (which is already bridged to channel B), but I'm running into some issues. I know the uuid's from both channel A and B, but the documentation I found on att_xfer only seems to indicate a way to do this from DMTF presses occurring on channel A. my idea was to use xml_rpc to execute a lua script which would take a uuid as an argv and bind to the session with freeswitch.session(uuid). I tried this, but the audio breaks up with the session that the lua script binded too. Does anyone have any recommendations on how I might accomplish an assisted transfer w/o DTMF presses and bind_meta_app knowing only a uuid? Thanks. --matt