[*] audio delay

Bob Pierce westmanbob at gmail.com
Fri Mar 11 15:15:39 CST 2011


I'm wondering if what you are describing is the behaviour that I have
seen with some echo cancellers where you may not hear any audio for a
few seconds at the beginning of the call while the echo canceller is
training.
...just a thought.

Bob

On Fri, Mar 11, 2011 at 12:21 PM, Chris Friesen <cfriesen at telenium.ca> wrote:
> I have a peculiar issue, looking for some expert insight
>
>
>
> I’m using a Switchvox (flavour of Asterisk installed) box, with an MTS pri
> and we are experiencing about a 5-7 second audio delay on many (not all)
> inbound and outbound calls.  E.g. I call out but the called person can’t
> hear me for a few seconds. Similar on the inbound. The delay has only
> started in the past month or so. The box has been restarted and MTS has
> indicated they are ‘seeing’ any problems from their side.
>
>
>
> When I record calls, I never hear any issues on the recording.
>
>
>
> It’s a Digium PRI card  Wildcard TE122 w/ hardware echo cancel
>
> PRI switch type is set to National ISDN 2, echo cancel tail 512, tx gain
> -6.00, using cisco 504G phones
>
> The phones are on a vlan, to separate traffic from PC’s.
>
>
>
> Thanks
>
> chris
>
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