asterisk users - Oct 2004 - IAX2 - Voice Pulse - slow choppy audio

Hello all;
I have an account with voicepulse.  When making outbound calls the sound
is great.  The inbound calls to asterisk ivr are another story.  The
audio is choppy at best and plays slow like a 45 rpm record at 33 1/3
rpm (yes showing my age here)  the following are, i think, the important
parts of iax.conf.  I saw something about this in the users-list but can
not find it, probably using wrong search criteria.  Can any one please
help.

John M


IAX.CONF snips

[general]
bindport=4569
bindaddr=192.168.1.5 ; Behind nat/firewall

bandwidth=low

disallow=all
allow=gsm			
allow=ulaw
allow=ilbc
allow=adpcm
allow=alaw

jitterbuffer=no

register => xxxxxxxxx:xxxxxxxxxxxx@gwiax-in-01.voicepulse.com
 
tos=lowdelay

[voicepulse-in-01]
type=user
contex=voicepulseauth=rsa
inkeys=voicepulse01
notransfer=yes	
trunk=yes
context=voicepulse

On Oct 1, 2004, at 1:27 PM, John Millican wrote:
> I have an account with voicepulse.  When making outbound calls the 
> sound
> is great.  The inbound calls to asterisk ivr are another story.
> jitterbuffer=no
Turn on the jitterbuffer.  That should clear up your problem right away.
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On Fri, 2004-10-01 at 14:49, David McNett wrote:
> On Oct 1, 2004, at 1:27 PM, John Millican wrote:
> > I have an account with voicepulse.  When making outbound calls the 
> > sound
> > is great.  The inbound calls to asterisk ivr are another story.
> > jitterbuffer=no
> 
> Turn on the jitterbuffer.  That should clear up your problem right away.
Turned on Jitterbuffer as follows and still same problem. these are the
defaults in iax.conf sample.  Do i need to change somthing, more
maxbuffer, less minbuffer ... ?

jitterbuffer=yes
dropcount=2
maxjitterbuffer=500
maxexcessbuffer=80
minexcessbuffer=10
jittershrinkrate=1

> 
> ______________________________________________________________________

Lazily top posting to my question,
the problem seems to have been caused by low bandwidth at my end. 
thanks to David anyway

On Fri, 2004-10-01 at 14:59, John Millican wrote:
> On Fri, 2004-10-01 at 14:49, David McNett wrote:
> > On Oct 1, 2004, at 1:27 PM, John Millican wrote:
> > > I have an account with voicepulse.  When making outbound calls
the
> > > sound
> > > is great.  The inbound calls to asterisk ivr are another story.
> > > jitterbuffer=no
> > 
> > Turn on the jitterbuffer.  That should clear up your problem right
away.
> 
> Turned on Jitterbuffer as follows and still same problem. these are the
> defaults in iax.conf sample.  Do i need to change somthing, more
> maxbuffer, less minbuffer ... ?
> 
> jitterbuffer=yes
> dropcount=2
> maxjitterbuffer=500
> maxexcessbuffer=80
> minexcessbuffer=10
> jittershrinkrate=1
> 
> 
> > 
> > ______________________________________________________________________
> 
> 
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On Fri, 2004-10-01 at 19:59, John Millican wrote:
> On Fri, 2004-10-01 at 14:49, David McNett wrote:
> > On Oct 1, 2004, at 1:27 PM, John Millican wrote:
> > > I have an account with voicepulse.  When making outbound calls
the
> > > sound
> > > is great.  The inbound calls to asterisk ivr are another story.
> > > jitterbuffer=no
> > 
> > Turn on the jitterbuffer.  That should clear up your problem right
away.
> 
> Turned on Jitterbuffer as follows and still same problem. these are the
> defaults in iax.conf sample.  Do i need to change somthing, more
> maxbuffer, less minbuffer ... ?
> 
> jitterbuffer=yes
> dropcount=2
> maxjitterbuffer=500
> maxexcessbuffer=80
> minexcessbuffer=10
> jittershrinkrate=1
> 
> 
do show iax2 channels during the call to see how large the jitter/lag
is. Some of the calls I get need a 750 sized jitter buffer. However, if
it gets that bad you need to look at the route the call is making and
maybe choose a provider with less lag. It is also essential that your
provider is using a recent version of *.

Chris