asterisk users - Aug 2008 - About the features.conf of it's transfer

HI
   This is my setup of the features.conf but it had not any reaction after I
pushed the *2 while calling was acting ! Could you tell me the reason ? Or
give my the method of the setting.
         Thanks!
                                                  LARRY
[general]
parkext => 700
parkpos => 701-702

context => parkedcalls

[featuremap]
atxfer => *2

[applicationmap]
set(DYNAMIC_FEATURES=tranf)

tranf => *2,peer,waitexten(10|m)