[asterisk-users] Balancing the Hybrid

[John Novack]

Michael Boers wrote:
> In an article on voip-info.org <http://voip-info.org> ( 
> http://www.voip-info.org/wiki/view/Asterisk+setup+research+lab ) , it 
> is suggested that one thing you can try to reduce echo is to insert a 
> 500 ohm resister on the ring line of the POTS line.  Has anyone 
> successfully tried this?  What was your experience.  Also, what size 
> 500 ohm resister would you use?  I am not an electrical engineer, but 
> I can wire a circuit in series.
>
> Any other echo reducing suggestions would be greatly appreciated!
> --
> Michael Boers
For non PSTN situations, some have had success with a 2 or 3 mile 
artificial line along with gain adjustments

John Novack