[Asterisk-Users] Re: Terrible inbound call quality vs. outbound

[Rich Adamson]

Rather than changing random * parameters without a clue as to what
the root-cause of the problem is, why not fire up ethereal and take
a close look at the iax packets? You should see timestamps within
the packet that are exactly 20 milliseconds apart. If you see other
values, then VP is having some sort of transcoding problem with a
machine on their end. Doubtfull it would take long to ID the root
cause.


> Yeah, I've been beating my head against the wall thinking it was 
> something with my config, but alas, it seems to be a case of me needing 
> to RTFF (Read The Effing Forum) and ask the community about their 
> experiences.
> 
> Sadly, VP seems to have a fairly high comparative "rating" against 
> other VOIP service while they seem to maintain horrible customer 
> support and crappy line quality. Sigh.
> 
> I wonder why the TX side of the conversation is clear though? Seems 
> like the packets would be treated identically since it's a full-duplex 
> conversation.
> 
> /rg
> 
> On Feb 1, 2005, at 4:29 PM, Brian Dingman wrote:
> 
> > I have also had issues with VP Connect ONLY on incoming calls also. It
> > doesn't happen all the time and has cleared up in recent weeks. But
> > when it happens, it would sound like I was listening to the caller
> > through a blown speaker.
> >
> > Have you reported this problem to them?
> >
> > Some things to try would be to turn off the jitterbuffer and disable 
> > trunking.
> >
> >
> > On Tue, 1 Feb 2005 16:12:45 -0800, Robert Goodyear <me at jrob.net> wrote:
> >> Oh I've tried all manner of packet shaping and QoS tagging... it's
> >> certainly not an issue with the ISP.
> >>
> >> I think Gene Willingham may have the right answer, that VoicePulse
> >> cannot handle the load.
> >>
> >> Anyone else have any thoughts? Maybe I need to find another IAX 
> >> service
> >> provider to test a different DID in my area.
> >>
> >> /rg
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