[Freeswitch-users] eavesdrop dtmf commands

Hello, Could you please tell me the documented behaviour is correct on this page: http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_eavesdrop When I eavesdrop an uuid without any dtmf command: The other half is deaf, and I can talk with uuid, and we are hear the other half. 0 and 1 dtmfs seems to be inefficient, nothing change, the behaviour is the same as above. But when i try with dtmf 2, 3 or three_way app. the uuid hear a terrible noise. I tried this with svn trunk r8193 both on windows xp and ubuntu linux. I would like to make somehow a three way call. And somehow uuid should talk with the other half during spy, could you tell me if is it possible? Thanks any help, Tamas