[asterisk-users] Asterisk / Audiocodes annoying issue - Seeking Suggestions

[Andrew Latham]

Cory

That sounds like "glare" and could be caused by the AudioCodes.  Check
your amplification or line power as I am sure you are not powering 5
miles of copper.

On 9/18/06, Cory Andrews <Cory at voipsupply.com> wrote:
>
>
>
>
> I have installed some AudioCodes analog gateways in conjunction with * and
> am having an annoying problem on the mp-118-fxs side. call quality is decent
> but on the mp118 you hear yourself in your ear with around 1/10 to 1/4 of a
> second delay. this is very annoying and makes it difficult to carry on a
> conversation.
>
>
>
> i have tried nearly every combination of codec including g711 a-law. i have
> tried every codec with and without silence suppression. even though it is
> now disabled, i have also increased the minimum buffer for jitter correction
> to 70ms and the jitter setting to 7 with no improvement in quality. i have
> tried setting the maximum echo buffer to the maximum amount 128ms but no
> improvement (i don't believe this affects anything anyways because by
> default if should go that far anyways).
>
>
>
> these sites are connected via an mpls vpn setup and the connection is very
> stable between sites. running a pingtest (ping every 50ms) i am getting
> consistent pings of between 71-72ms over a period of 10 minutes.
>
> that is why i have reduced the minimum jitter buffer to 0 and have set it to
> the very aggresive setting of 0 (remember i changed it to default of 70/7
> with no improvement). it seems like the unit is trying to play back my voice
> in my ear like a regular phone would, but my voice is coming back to me only
> after it reaches the far end first. is there any way to prevent me from
> hearing my own voice in my ear at all or to filter that out? i do not hear
> an echo of the person coming from the MP114 FXO unit, i only hear my own
> voice delayed to myself.
>
>
>
> If anyone is using Audiocodes, and has corrected similar problems, please
> shoot me an email.
>
>
>
> Thanks
>
>
>
>
>
> Cory Andrews
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Andrew Latham - AKA: LATHAMA (lay-th-ham-eh)
lathama at lathama.com - lathama at gmail.com
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Hind sight is most always 20/20 or better.
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