freeradius and mobile number portability (MNP)

Hi everybody, I have to configure freeradius server in order to respond to mobile number portability (MNP) query. The client which will query my server is an MVTS softswitch, but I can't interact with it until I develop at least a pseudo-running configuration because it's a legacy installation owned by one of our customers. I have read docs about MVTS but I got lost in the variety of attributes and I was wondering if someone has experience with this problem. Actually I'm looking for a sample query packet and a desired response, in order to configure everything in the right way. I will really appreciate any help, ideas, doc, sample code, whatever. Thanks, Mauro Iorio Smart Soft s.r.l.