[Freeswitch-users] newbie: bridge control

Hello List, I'm a newbie to Freeswitch. I need to bridge an inbound call to another call, and detect pattren of DTMF. If the the pattern happen, I need to capture it to a variable, and hangup leg B (the bridged one), and continue doing stuff with Leg A. If Leg B was disconnected, I need hangup leg A as well. I wish to better understand how to look such thing on the wiki, prior for direct answer on how to do it, in order to better learn FS and it's usage :) So any help on this matter is more then welcome. Thanks Ido