[asterisk-users] Odd blip when playinv IVR over IAX

[Matt]

Ineresting.. I'll test that theory... but why would it do something like:

"Oh I'm sorry, I didn't understand... let's try this a/way"
instead of:
"Oh I'm sorry, I didn't understand... let's try this a different way"

That's not at the end... though close to it.

On 11/27/06, Tim Panton <tim at mexuar.com> wrote:
>
> On 27 Nov 2006, at 01:37, Matt wrote:
>
> > Hi,
> > I have an IVR that sounds just fine and dandy over ZAP.  However, when
> > I dial in through an 800 number from a provider that I connect to via
> > IAX I get this 'blip' in the sound file.   At first I thought it was
> > just packet loss, but it happens at the exact same spot every single
> > time.   There are several parts to the IVR menu and several places
> > where this blip happens every single time you call in (but only over
> > IAX from this 800 provider).   Can anyone possibly enlighten me as to
> > what might be causing this?
> >
> > It's not a big deal... but I'm curious what is making it happen.
>
> I guess that you are playing back a soundfile which isn't an
> exact multiple of 20ms. At some point in the 1.2 evolution chan_iax
> started
> sending out short packets at the end of such files.
>
> Some (older) Iax's don't like short packets and dump them.
>
> You can fix it by padding the end of any files to a whole number of 20ms
> or using a fixed length codec - like gsm.
>
>
> Tim Panton
>
> www.mexuar.net
> www.westhawk.co.uk/
>
>
>
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