[Asterisk-Users] Acceptable voice time delay

chawki hammoud cyhammoud at yahoo.com
Wed Apr 13 08:00:52 MST 2005


--- Sean Kennedy <skennedy at tpno-co.org> wrote:
> chawki,
> 
 
> That additional 2.5 seconds of delay may be any
> combination of things, 
> but I would look first to your ISP and their
> backbone.

I will try new isp in two weeks with better routing.
Meanwhile, is there any known latency issues if
Asterisk is behind a nat vs. asterisk with a real ip.

this is how i configured my voipjet contextin iax.conf
file

[voipjet]
type=peer
host= 216.118.117.46
secret= secret number
auth=md5
notransfer=yes
context=default
nat=yes
careinvite=no

I have just added nat=yes and careinvite=no thinking
this might be the cause of the delay, but no change

does iax maintains open communication at all times
once the call starts?

thanks
 
> Good luck!
> 
> Sean
> 
> chawki hammoud wrote:
> 
> >thank you Rob:
> >
> >the problem is that I am experiencing about 3 secs
> >latency although the ping is 600ms which is a round
> >trip packet travel time. so i should experience
> about
> >half a sec latency including the voipjet server
> >response and the latency to the pstn. that is
> >annoying, but nothing compared to about 3 sec.
> >
> >do you think the rest of the delay is due to
> voipjet
> >slow response to the pstn network or some other
> issues
> >would you be bale to clculate where the 3 sec is
> >comming from
> >
> >thanks.
> >
> >
> >  
> >
> >>Around 250ms max. Over that and you will have the
> >>walkie-talkie effect
> >>you are experiencing.
> >>    
> >>
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