[asterisk-users] "scratchy" sound on TE410P

[Daniel Tryba]

On Sun, Nov 07, 2010 at 10:26:59AM -0500, Jeff LaCoursiere wrote:
> asterisk 1.4.35
> dahdi 2.3.0.1+2.3.0
> one span on a 4port T1 card
> 
> Got complaints this morning that outbound and inbound calls were 
> "scratchy" and I made a few test calls.  It kind of sounds like the gain 
> is too high somewhere, and the audio is overdriven. 

It could be the echo canceller, I had this kind of problem with OSLEC. I
also thought the PRI provider was sending clipped audio. I switched to
the VPM450 daughterboard and since audio has been crystal clear. What is
your setup for echo cancelling?

-- 

   Daniel Tryba