asterisk users - Nov 2009 - Question about OSLEC or HPEC with AsteriskNow

I was previously using an old computer running Asterisk 1.2 with  
zaptel. Once the CPU fried I switch to a new computer and I chose  
AsteriskNow 1.5 running in 64bits to simplify the installation  
process. I manage to find my way with configuring dahdi instead of  
zaptel and to switch all my previous config to the new computer. Now  
everything is fine except that even if I use the md2 echo cancellation  
it's not perfect I still have echo issue. So I made some search around  
and found that there's oslec and hpec out there that seems to be  
better then what I'm currently using. So my question should I use hpec  
or oslec with my TDM400 card? I also tried to recompile dahdi to use  
oslec (before I found that Digium had hpec) but then I get an error  
message that the source of my kernel cannot be found so I can never  
actually compile a new version of dahdi.

Thanks

Martin

2009/11/17 Martin Roy <mroy at mac.com>
> I was previously using an old computer running Asterisk 1.2 with
> zaptel. Once the CPU fried I switch to a new computer and I chose
> AsteriskNow 1.5 running in 64bits to simplify the installation
> process. I manage to find my way with configuring dahdi instead of
> zaptel and to switch all my previous config to the new computer. Now
> everything is fine except that even if I use the md2 echo cancellation
> it's not perfect I still have echo issue. So I made some search around
> and found that there's oslec and hpec out there that seems to be
> better then what I'm currently using. So my question should I use hpec
> or oslec with my TDM400 card? I also tried to recompile dahdi to use
> oslec (before I found that Digium had hpec) but then I get an error
> message that the source of my kernel cannot be found

Do you imply you previously installed a Dahdi binary package ?
If positive, before compiling Dahdi source code, you need to install Linux
header files.
On Debian systems, you can get this with something like :

apt-get -install linux-headers-2.6.26-2-686

Regards

> so I can never
> actually compile a new version of dahdi.
>
> Thanks
>
> Martin
>
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