[Freeswitch-users] mod_lcr + nibble_bill + leg B

Hi, I followed the article at http://wiki.freeswitch.org/wiki/Mod_lcr to activate nibble bill with mod_lcr on leg B, but the nibble bill account is not debited. I tried to put <action application="lcr" data="${dialed_extension} public"/> in dialplan with no success, it generates a "bad gateway" error when I tried to call the user from outside FS. did I forget to set something ? Thanks F