[Freeswitch-users] New feature - NAT handling, keep-alive OPTIONS

[Anthony Minessale]

Apart from the few ways I mentioned, I don't know any other way.  I am a fan
of the client using STUN rather than the server compensating.

On Wed, Apr 16, 2008 at 11:29 AM, kokoska rokoska <kokoska.rokoska at post.cz>
wrote:

>
>
> Anthony Minessale napsal(a):
> > Yes you remove the force-contact variable from the <domain> tag and only
> > set it in the individual <user> tag.
> > That is how you can pick and choose which ones do the options.
> >
>
> Thank you very much, Anthony, for your answer!
>
> Yes, I use force-contact per individual user, but if I don't see IP
> address UAC sends in "Contact:" header I couldn't decide if I need to
> force-contact or not (may be I can, but don't know how :-).
> And even worse, I need to force-contact (apply NAT-hack) every client
> behind NAT (it is obvious), but send keep-alive OPTIONS only to few of
> them (and it is, may be, not obvious).
>
> > You can also configure a force-expires on each user so the register will
> > reply with a very short expiry time to
> > trigger the client to re-register at any frequency you want. You can
> > enable this without enabling the force-contact
> > The force-contact option automatically sets the expire time to 20
> > seconds but you can make it even lower if you wish.
> >
>
> Yes, I see it in the sources. I force exptime (by configuration, not by
> hardcoding into sofia_reg.c :-) to much higher value, because IMO is
> REGISTER processing much more expensive compared to just sending OPTIONS.
>
> ---------------
>
> May be I am not able to clarify it enough, but I want to have
> registered, lets say, about 10.000 of UACs, half of them (5.000) are
> behid NAT (but I don't know which one of them and it changes frequently)
> and only about 500 of them realy have to be NAT-pinged by FreeSWITCH.
> There is no trouble to NAT-ping all population of 10.000 users, but I'm
> in doubt if FreeSWITCH could handle this amount of SIP messages.
>
> If you - or anybody other - have some experiences with similar amount of
> NATed users, please share the information. I shall be very happy...
>
> Thanks once more for your suggestions!
>
> Best regards,
>
> kokoska.rokoska
>
>
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-- 
Anthony Minessale II

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