[Kamailio-Users] CDRTool and Prepaid

[David Villasmil]

On Mon, Sep 1, 2008 at 12:59 PM, Raúl Alexis Betancor Santana <
rabs at dimension-virtual.com> wrote:

> El Monday 01 September 2008 11:12:49 DanB escribió:
> > Hi Matteo,
> >
> > I was in the same position like you are now, months back.
> >
> > At least in OpenSER (please note that 1.4 is no longer tagged as OpenSER,
> > but Kamailio) it was hard to do call-control since SER like was not
> > initially developed to be dialog aware server. Dialog module is coming
> > slowly to be there but I have the feeling it will take a bit time more to
> > have a mature product out.
> >
> > In the mean time I decided to go with an easier approach, so have
> installed
> > Yate ( I am sure Asterisk or Freeswitch can do the same job as well, but
> it
> > is just about having yate on hands on that time). In my case Yate will
> take
> > the timeout value from Private SIP Header and process it as global timer
> of
> > the call (Yate acts as SBC or B2BUA).
>
> In that scenario Yate is working as B2BUA not as SBC.
>
> > If the call does finish before the
> > timer is hit, Yate will do the job and disconnect both legs of the call
> > (inbound and outbound) by sending BYE to both parties, therefore reaching
> > the scenario wanted. However, this is considered like a security whole in
> > Yate since anyone could achieve call disconnects by using the right
> private
> > header, so u must set also an ip acl inside yate for the calls where u
> > process the private-timer header.
>
> In you put a Kamailio in front of Yate you could ensure taht private-timer
> headers are only there because Kamailio put them, so no security hole
> possible.
>
> > I am at your disposal if you need further help with freeradius-cdrtool
> > connector (planning to release out a new version soon, just hope that the
> > time will stay still to give me that opportunity ;-) ).
>
> In your solution, you have not considered the situation of two simultaneous
> calls from the same user.
>

And how would you treat such scenario?


d
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