[asterisk-users] qualify=yes

[Julian J. M.]

FYI, the interval at which the device is checked is 60seconds when OK,
and 10s when not OK.

It can be changed in channels/chan_sip.c. Look for this lines:

#define DEFAULT_FREQ_OK         60 * 1000       /* How often to check
for the host to be up */
#define DEFAULT_FREQ_NOTOK      10 * 1000       /* How often to check,
if the host is down... */


If the device (hard or softphone) doesn't support keepalives and the
nat router has a short timeout (less than 60s), even when qualify=yes,
the nat mapping will timeout, thus being unable to receive calls. In
this case, you can lower that 60 to a value slightly lower than the
router timeout.

Julian J. M.



On 11/22/06, Pavel Jezek <pavel.jezek at i.cz> wrote:
> qualify=xxx in sip means, consider peer as OK if delay reply is bellow
> xxx (ms)
> qualify checks (POKE) is every 60s (and is not configurable in sip.conf)
>
> qualify setting in iax.conf is working differently, this is how
> frequently to check peer (and is not possible to set some POKE delay
> threshlold as working qualify in sip)
>
> this is quite misleading and inconsistent and should be improved ;-)
> PJ
>
>
>
> Vicky wrote:
> > I doubt that . I think qualify=500 means asterisk checks every 500 ms
> > if the
> > other extension is available or not . Because when qualify=( value in
> > ms )
> > is set and you do a sip show peers in console asterisk whos how much
> > latency
> > is there between extension and asterisk . If i set qualify = no then it
> > shows UNKNOWN . If i set qualify=10 then it doesnt mean asterisk shows
> > extension lagged if latency is less than 10 ms ... It just checks
> > every 10
> > ms for extension . I am not very sure though :)
> >
> > On 22/11/06, Eric ManxPower Wieling <eric at fnords.org> wrote:
> >>
> >> Enrico Pasqualotto wrote:
> >> > Enrico Pasqualotto wrote:
> >> >> hi all, how can I set the interval in second from retrasmit the magic
> >> >> packets when qualify is set to on?
> >> > You have to set qualify=second instead of qualify=yes|no.
> >>
> >> This is WRONG.  qualify=500 means "consider this device lagged if
> >> responses take longer than 500ms"  I don't know if you can set the
> >> frequency of qualify packets.  If you can, I assume the option would be
> >> listed in sip.conf.sample.
> >> _______________________________________________
> >> --Bandwidth and Colocation provided by Easynews.com --
> >>
> >> asterisk-users mailing list
> >> To UNSUBSCRIBE or update options visit:
> >>    http://lists.digium.com/mailman/listinfo/asterisk-users
> >>
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > --Bandwidth and Colocation provided by Easynews.com --
> >
> > asterisk-users mailing list
> > To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>