Hello, I'm looking for a couple of suggestions as how to implement some specifics. I've set up a FreeRADIUS server to do AAA primarily in a SIP enviornment. I've got a B2BUA which attempts to authorize outgoing calls. I want to use this to do Least Cost Routing. Upon an INVITE packet, the B2BUA sends the following attributes User-Name = "1234" User-Password = "." NAS-IP-Address = 10.10.17.5 NAS-Port = 1000 Called-Station-Id = "5551212" Calling-Station-Id = "1234" This is enough information for me to authorize the phone call. Here are my questions 1) I have tariff tables stored in a back-end database. What would be the best way to go about looking up this information? Is there some way to execute a custom SQL lookup to pull this information back? Or should I be calling exec to say a custom script? 2) If exec is the best way to go about doing this, am I correct in reading the documentation that my script should be returning 0 (Access-Accept) or 1 (Access-Reject)? 3) I can customize my B2BUA so it accepts an IP address to forward a SIP request along. Is there a way either from exec or another method to add Radius attributes to the reply packet? That way I can do true LCR and tell the B2BUA which Gateway to forward the request. Thanks. -Daniel