sir
    i am working on project  Build SIP-based VOIP Service With RADIUS AAA Using Kamailio (OpenSER) And FreeRadius as per tutorial given by you.
 but the problem is

1.i am not understanding how to intialize modules for freeradius
2.while testing radius server where to make file named digest
3.the openser configuration which is given by you should be stored in which file?
4.and after all configurations done how to test all the parameters configured



hoping for reply
regards
sanyog