[Serusers] Prepaid approach

[Ashutosh kumar]

Hi,
	OK, but how do you monitor the call while it is in progress? 

To disconnect the call, I am planning to use the session timers set in the
header prior to intitiating the call, which will offload the task of
montoring the call by SER, and disconnection-on-zero-credit will be handled
by our pstn gw. Am I wrong somewhere?


Regards,
Ashutosh

-----Original Message-----
From: Ryan Pagquil [mailto:rpagquil at philonline.com] 
Sent: Friday, October 28, 2005 3:33 PM
To: Ashutosh kumar
Cc: serusers at lists.iptel.org
Subject: Re: [Serusers] Prepaid approach

Hi,
We are a bit similar in implementing prepaid service. Our users are 
normally can call other users in our domain, and they are initially not 
member of the pstn group in the ser.grp table. once they bought credits 
they will be put in the "pstn" group and can call pstn destinations. But 
when they run out of credit, we sends a bye message using sipsak on both 
PSTN gateway and the user's IP phone.

Regards,
Ryan

Ashutosh kumar wrote:

> 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
>
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