[Asterisk-Users] asterisk using tdm400p has echo

[tmassey at obscorp.com]

asterisk-users-bounces at lists.digium.com wrote on 10/26/2005 05:09:30 PM:

> On Oct 26, 2005, at 3:40 PM, Mark Quitoriano wrote:
> 
> > Hi list, i'm having a problem with asterisk+pstn termination, i just 
> > bought a TDM400p and connect my phone line(bellsouth) now when im 
> > using the pstn through asterisk there's an echo, i don't know if this 
> > is already have been resolved. If it does please point me to the 
> > instruction how to resolve this.
> 
> Try reading README.fxotune and using fxotune to see if it improves it. 

If you do an fxotune and all of the coefficients are 0, does this mean 
that fxotune is not making any changes?

I've got 6 lines that are coming from a channel bank into two TDM cards 
and have significant echo, even with Asterisk HEAD and KB1.  I just ran 
fxotune, and all 6 lines came back with all 0's in fxotune.conf...

Tim Massey
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20051026/15a013e6/attachment.htm