[Asterisk-Users] Echo Training - how long

[Uwe Betz]

Does echotraining also work with HFC-S controllers or is this feature 
restricted to some digium controllers?
So does it make sense at all to switch it on for HFC-S controller used 
in NT-Mode with ISDN-Phones connected?

Jui

Rich Adamson wrote:
>>I have echo training set on in my zapata.conf file for a X101P card:
>>echocancel = yes
>>echocancelwhenbridged = yes
>>echotraining = yes
>>
>>Now, I know that echo cancellation is a black art, but I am finding that
>>at the beginning of a call bridged between a SIP channel and a Zap
>>channel the voice quality is poor to abysmal for the first few seconds,
>>but as the call progresses, esp after about 30 seconds, the call quality
>>becomes very acceptable.
>>
>>Should echo training take that long?
>>Is it, in fact, echo training or some thing else?
>>Has any one got any guidance on ET other than what is in the wiki, which
>>I find to be very hard to follow?
> 
> 
> Try echotraining=800 and see if that makes a difference.
> 
> 
> 
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