asterisk users - Sep 2006 - Satellite link-IAX Jitter Buffer.

I would like to setup asterisk via a dedicated satellite link with latencies
of 700ms -1000ms I am having problems adjusting the jitter buffer and would
like to find out if anyone has iax configs for a similar setting I am using
g729 codec .I can communicate but just having issues with sound clarity I
can hear the person on the other end but would like to fine tune it for the
best possible results my iax conf is as  follows on both ends.

iax.conf

[general]
bindport = 4569           ; Port to bind to (IAX is 4569)
bindaddr = 0.0.0.0    ; Address to bind to (all addresses on machine)
disallow=all
allow=g729
allow=ilbc
allow=ulaw
allow=alaw
allow=gsm
mailboxdetail=yes

bandwidth=low
jitterbuffer=yes
dropcount=4
maxjitterbuffer=450
maxexcessbuffer=80
jittershrinkrate=1
trunktimestamps=yes
trunkfreq=50
tos=lowdelay 

Regards
Brian
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> I would like to setup asterisk via a dedicated satellite link with
> latencies
> of 700ms -1000ms I am having problems adjusting the jitter buffer and
> would
> like to find out if anyone has iax configs for a similar setting I am
> using
> g729 codec .I can communicate but just having issues with sound clarity I
> can hear the person on the other end but would like to fine tune it for
> the
> best possible results my iax conf is as  follows on both ends.
>
> iax.conf
>
> [general]
> bindport = 4569           ; Port to bind to (IAX is 4569)
> bindaddr = 0.0.0.0    ; Address to bind to (all addresses on machine)
> disallow=all
> allow=g729
> allow=ilbc
> allow=ulaw
> allow=alaw
> allow=gsm
> mailboxdetail=yes
>
> bandwidth=low
> jitterbuffer=yes
> dropcount=4
> maxjitterbuffer=450
> maxexcessbuffer=80
> jittershrinkrate=1
> trunktimestamps=yes
> trunkfreq=50
> tos=lowdelay
>
> Regards
> Brian
>
Hi,

what version of Asterisk are you using.  From your configs, it looks like
you using the old jitterbuffer.  You might have better results with the
'new' jitterbuffer (it has PLC).  iax.conf says which jitterbuffer
settings applies to the 'new' or 'old'.  Try the new settings. 
Here is
one I have (the 'new'):  Asterisk 1.2.6

;jitterbuffer=yes
;forcejitterbuffer=yes
;maxjitterbuffer=300
;maxjitterinterps=300
;resyncthreshold=1500
;trunktimestamps=yes


thanks,
yusuf


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