[Serusers] HELP: set max_contacts parameter on registrar module fail

[Jan Janak]

On 27-04-2005 21:32, Charles Wang wrote:
> Hi, Jan:
> 
> In fact, I am afraid of too many UACs make calls to each others. So I
> want to limit the max total registers in order to limit the max online
> calls.

  In fact, a single user agent could handle several calls
  simultaneously, so this would not work. SER does not keep the track of
  number of simultaneous calls, so this is hard to do. 

> Do you have any solution to limit the max online calls or max registers??

  No, so far it was not needed.

> If too many UACs make calls to each others, all people have no enough
> bandwidth to get good quility of voice.

  This is what QoS (Quality of Service) was invented for. Bandwidth
  management is a hard problem and most people just ignore it.

  If you are using an RTP proxy for all calls then it would be posssible
  to track the number of active calls there. Then you could write the
  value into database and let SER read it. If the value exceeds some
  preconfigured treshold then you could simply deny the INVITE. But this
  solution is not very nice and even using this you cannot guarantee the
  quality of calls, because bandwidth requirements can change in the
  middle of a call.

    Jan.

> 
> On 4/26/05, Jan Janak <jan at iptel.org> wrote:
> > Limiting the maximum number of registered contacts on the server is not
> > possible. You can limit the number of contacts per address of record --
> > that's all.
> > 
> > Why do you want to limit the total number of contacts, btw ? This is the
> > first request for such a feature.
> > 
> >  Jan.
> > 
> > On 25-04 17:50, Charles Wang wrote:
> > > hi, jan:
> > >
> > > do u have any idea / solution to limit the max total contracts on ser?
> > >
> > > On 4/25/05, Jan Pedro Tumusok <jpt at firstmile.no> wrote:
> > > > Charles Wang wrote:
> > > > > Hi, ALL:
> > > > >
> > > > > I set the following line on my ser.cfg to limit the max registers.
> > > > > modparam("registrar", "max_contacts", 3)
> > > > >
> > > > > Then I restart my ser.
> > > > > I find that I can register more than 3 UACs to my ser. So I guess that
> > > > > the parameter max_contacts is not workable. Is it true?
> > > > >
> > > > > Does anybody have any idea/solution about it?
> > > > >
> > > >
> > > > I belive that the max contacts is per user and not total registrations
> > > > on SER.
> > > >
> > > > Pedro
> > > >
> > >
> > >
> > > --
> > >
> > > Best Regards
> > > Charles
> > >
> > > _______________________________________________
> > > Serusers mailing list
> > > serusers at lists.iptel.org
> > > http://lists.iptel.org/mailman/listinfo/serusers
> > 
> 
> 
> -- 
> 
> Best Regards
> Charles