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List:       freeswitch-users
Subject:    [Freeswitch-users] FreeTDM and DAHDI+OSLEC/MG2 anyone?
From:       steveu () coppice ! org (Steve Underwood)
Date:       2010-06-29 13:24:59
Message-ID: 4C29F42B.10403 () coppice ! org
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On 06/29/2010 03:33 AM, Jeroen C. van Gelderen wrote:
> Hi Mark,
>
> I'm curious to see if you'd had any luck with DAHDI built-in echo cancellers
> such as MG2? (I figured since MG2 has been built into DAHDI for a while it
> would be slightly more likely to work than OSLEC. In my case neither MG2 nor
> OSLEC works.)
>    
MG2 has very little chance of working. OSLEC is the only open source 
canceller which actually works.
> In order to determine whether echo cancellation is in use with DAHDI you can
> check the output of lsdahdi:
>
> [root at elastix ~]# lsdahdi
> ### Span  1: XBUS-00/XPD-00 "Xorcom XPD #00/00: FXS" (MASTER)
>    1 FXS        FXOKS       (In use) (SWEC: OSLEC) (EC: OSLEC)
>    2 FXS        FXOKS       (In use) (SWEC: OSLEC)
>
> This shows FXS port 1 in off-hook with OSLEC in-use.
> FXS port 2 has OSLEC configured but is on-hook.
>
> If I were to run FreeSwitch the channel would be silent in this
> configuration.
>    
Regards,
Steve



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