OSLEC x HWEC effectiveness

Sangoma AFT-REMORA A200-R Rev. 2.1 [2005]. It seems OSLEC works better than the HWEC that came with the card. Is it expected? Thanks a lot.

Not an answer to your specific question, but I found the same thing with a Synway 24-port DAHDI card I bought a few years ago. The HWEC quietly “whined”, especially as the day wore on… I’m pretty sure it was that people would get tired of the whistle and just seemed to get louder.

Thanks. I´ll continue to perform tests.

But I´m not really sure if OSLEC is actually enabled or not. My dahdi_cfg -v is showing this:

[[email protected] ~]# dahdi_cfg -v
DAHDI Tools Version - 2.11.1

DAHDI Version: 2.11.1
Echo Canceller(s): HWEC

4 channels to configure.

Setting echocan for channel 1 to oslec
Setting echocan for channel 2 to oslec
Setting echocan for channel 3 to oslec
Setting echocan for channel 4 to oslec

At the top I see HWEC, but at the bottom it says oslec is being set to channels.