Hi,

            While trying to implement prepaid solution using SER, I decided to go be a intuitive approach which is as follows.

            -When the user registers, he is placed in a “voip” groups table of ser (or radius server database), i.e he can make only pc-to-pc calls.

            - Later , or otherwise, when the user registers, he is shifted to a “pstn” groups table of ser , i.e noew he can make only pc-to-pstn calls.

            -Henceforth, whenever  the user logins and tries to make pstn call, the call is approved only if  group_radius_is_user_in(username) succeds, else the call rejected by SER.

            -To restrict the user from making pstn calls when his credits are zero (or beyond a threshold) , a dedicated cron job is scripted to move users from “pstn” group to “voip” when their

             account_cerdit=0.

Am I right in using this approach, or are there any foreseeable problems which I might be overlooking.

Thanks.

Regards,

Ashutosh Kumar