Hello all, I thank you people who given me help to find out a solution to prepaid billng so as per one of the users suggestion i tried to install the patch of the b2bua with asterisk 1.4.2 and i want to test whether the radius server is communicating with asterisk or not the few doubts i have at present are 1)how to set radius attributes to radcheck table as i was unable to pass the digest credentials to the radius server 2)the default library file provided with the b2bua is sufficient to talk to the readius server or shall i need to include as we did with openser 3)what about this gateways information in the config file of b2bua help is required thanks in advance srinivas antarvedi i