[asterisk-users] Echo...

[Leo Ann Boon]

Eric "ManxPower" Wieling wrote:
> *sigh*  Any time a call hits an analog 2-wire circuit there will be 
> echo.  In normal PSTN only situations the echo is so FAST that you do 
> not hear it.  It is only where there is a high latency path in the 
> circuit like a VOIP phone where you will hear the echo.
>
> Recording the call on Asterisk will not let you hear the echo because 
> there is no high latency portion of the circuit.
I'm fully aware of these facts. I only suggested this to help Ken 
isolate whether is the echo on his PSTN side. He has been tuning his FXO 
interface without results, which leads me to suspect he's got echo 
elsewhere. Ken also left out what kind of phone he's using.

Ken should also read Cisco's excellent introduction on troubleshooting 
echo problems:
http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a0080149a1f.shtml

Leo