[Asterisk-Users] Echo cancellation over satellite link

[Jerry Jones]

Good luck. I am running dedicated echo cans and they only go to  
192ms. I do not think 400ms would be regarded as toll quality which  
is what most links strive for. Byt the time the echo cans buffer  
enough so they can cancel 400 you would have some extreme latency.  
My .02 anyway.

On Dec 6, 2005, at 12:03 AM, BJ Weschke wrote:

> On 12/6/05, funny guy <asteriskmail at yahoo.com> wrote:
>> Hi,
>>
>> Just wondering, is the echo canceller in the TE411P capable of  
>> cancelling
>> the echo caused by the delay over satellite link (i.e. approx 400  
>> ms delay)?
>>
>> Does anyone have any success story to share?
>>
>> I'm kinda stuck with a really2 annoying echo... adjusting the gain  
>> didn't
>> help... and what should my zapata.conf look like for effective echo
>> cancellation?
>>
>> Thanks in advance ^_^
>>
>
>  No. Neither Digium nor Sangoma I believe are putting in hardware cans
> that would support a 400ms+ tail. I think the most you're going to get
> is 128ms.
>
> --
> Bird's The Word Technologies, Inc.
> http://www.btwtech.com/
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