Just consider the scenario where some connections/calls has no BYE (say because one of the UA fails, etc). This scenario illustrates the miscount opportunity. This can be avoided only if You count the RTP streams on a RTPProxy configuration. In the case of such a UA fail, the sessions runs on a time-out and after that the counter would be ‘automagically’ decremented, but in the meantime the user could not receive calls, even if it is ‘on-hook’.

Edson.

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From: users-bounces@openser.org [mailto:users-bounces@openser.org] On Behalf Of Jayesh Nambiar
Sent: terça-feira, 9 de maio de 2006 16:38
To: Bogdan-Andrei Iancu
Cc: openser
Subject: Re: [Users] limiting number of calls

Hi bogdan,

Thanks for the reply...

My requirement is as follows:

- I want to limit the number of incoming calls per user can receive.

- I think, it is possible using the avpops module. But can someone please give me a hint on where to start to implement this.

- Now since the dialogue module is out, I dont think there wud be a problem of missing byes as it will terminate the session after a certain timeout.

- Is it possible in openser script to somehow set a counter.

- for eg. the counter will be set to 2 when any user receives a call and it will be decremented when the same user receives a call again, and when the count for that user is 0, he will receive no more calls.

- This counter has to be enabled on a per user basis.

- Please let me know if this is possible.

- I need to achieve this because otherwise any user can have an 8 port or 24 port gateway registered with my openser and receive so many calls at the same time. I want to avoid this happening.

thanks in advance......

jayesh. 

Bogdan-Andrei Iancu <bogdan@voice-system.ro> wrote:

Hi,

the dialog module functionality is yet simple - it can monitor the call
(catching BYEs and other sequential requests); if no BYE is received,
the dialog will expire after a defined timeout.

it can count the number of calls, but globally and not per user.

regards,
bogdan

Jayesh Nambiar wrote:

> Hi,
> how can the dialog module help prevent the issue of missing BYEs?? Is
> dialog module capable of monitoring the sessions going on in openser.
> I also wanted to ask that if i try limiting the no. of calls that per
> user can receicve how do i match the invite with the byes.
> for eg: I may allow some users to have 5 incoming calls and other 2
> and so on. So, I'll have to store that value in the DB table
> somewhere, and when a user receives a call, this column will be
> checked and the value should be decremented when he receives the
> invite message.
> But how do i again increment the value, when the user receives bye. I
> mean how do i write the logic to match the invite and byes so as to
> increment and decrement the simultaneous calls value.
>
> please help me regarding this....
>
> thanks in advance.
>
> jayesh.
>
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