[Freeswitch-users] mod_lcr for a-z rates

Hi everyone, I'm trying to write a calling card app with A-Z rates, and I plan to use mod_lcr for this case... the only thing I need mod_lcr to do for me is get the rate based on the destination number / prefix. Is there a way I could achieve this with mod_lcr? I seen the wiki page and the SQL examples, but the SQL examples does a lot more, so I was thinking if I could use a custom SQL query to only do what I need. Thanks, Diego