[Freeswitch-users] Trouble getting session.setInputCallback working.

Hi all, I'm trying to get a setInputCallback function working with mod_python. I'm using a current svn checkout for my build and the hello world via call example from the wiki ( http://wiki.freeswitch.org/wiki/Mod_python#Hello_World_via_call ). I've tried repeatedly, but I can't get the callback function to execute. I keep pressing various digits on my phone, but none of them are being logged to the console. My understanding is that this callback is supposed to fire when a dtmf (123456789*#, right??) and also acts as an event handler for things like mod_vmd. Is this part of the wiki example working for anyone else? Any idea what I might be doing wrong? Thanks! Erik