[Asterisk-Users] Echo problem

[Kris Boutilier]

> -----Original Message-----
> From: Andrew Kohlsmith [mailto:akohlsmith-asterisk at benshaw.com]
> Sent: Wednesday, June 08, 2005 11:27 AM
> To: asterisk-users at lists.digium.com
> Subject: Re: [Asterisk-Users] Echo problem
> 
> 
> On Wednesday 08 June 2005 13:37, Martin Roy wrote:
> > rxgain= I tried from -8.0 to 10.0
> > txgain = I tried from -8.0 to 10.0
> 
> Unless you are making measurements and actually analyzing the 
> results you're only stabbing in the dark playing with these things.
> 
{clip}
> 
> Take a read here.  I reference this document continuously:
> 
> http://lists.digium.com/pipermail/asterisk-users/2004-November/071301.html
> 
> Yes, it's work and yes, you may have some trouble doing it/locating the 
> numbers for milliwatt and quiet term but you know what, this is engineering 
> and this is how to do it correctly.  Everything else is just 
> pissing around hoping for a solution rather than making educated guesses and 
> anlyzing the results.
> 

You may also wish to review http://lists.digium.com/pipermail/asterisk-users/2005-March/096426.html which attempts to explain the causal relationship between gain and echo - ie. Nework Loss Planning. A neutral configuration may not be the optimal soloution in all cases.

Kris Boutilier
Information Systems Coordinator
Sunshine Coast Regional District