[Asterisk-Users] ECHO Tutorial

[Steve Underwood]

Seth Remington wrote:

>On Mon, 2006-06-19 at 18:45 -0400, Gary Reuter wrote:
>  
>
>>On 6/19/06, Daniel Salama <lists at infoway.net> wrote:
>>    
>>
>>>Is there anyone that could explain to me the phenomenon of Echo or
>>>      
>>>
>>at
>>    
>>
>>>least point me where I can learn more?
>>>      
>>>
>>This paper by Cisco is a great start:   "Echo Analysis for Voice over
>>IP"
>>http://www.cisco.com/en/US/tech/tk652/tk701/technologies_white_paper09186a00800d6b68.shtml
>>(it's the first result I get when I google for "echo in voip") 
>>    
>>
>
>There was also a good article in LJ late last year:
>
>http://www.linuxjournal.com/article/8424
>
>-Seth
>  
>
There is a much better beginner's explanation at 
http://www.spiritdsp.com/pdf/article_4.pdf

Steve