How to be sure your sangome a200 hardware echo cancellation is working

Is my hardware echo canceller running?

How to confirm that your hardware echo canceller is running and active on your Zap calls.

1. Confirm that you have a hardware echo canceller:
After the Wanpipe drivers are installed, type:
#>wanrouter hwprobe
It should say:

1. AFT-AXX-SH : SLOT=X : BUS=X : IRQ=X CPU=A: PORT=X : HWEC= 32 : V=X
HWEC values should be:
A200d : 32
A101d : 32
A102d : 64
A104d : 128
A108d : 256
If it says HWEC=0, and you ordered a "d" model card,
If you purchased this card from a reseller, contact your reseller.
If you purchased this card directly from Sangoma, contact Sangoma RMA department.

2. If you have a hardware echo canceller, confirm that:
1. You have a 2.3.4 / 3.2 series driver.
2. You have the parameter " TDMV_HWEC = YES " in your /etc/wanpipe/wanpipe*.conf
3. You have the parameter "echocancel=yes" in your /etc/asterisk/zapata.conf

3. After you start wanrouter start, type:
#> wan_ec_client wanpipe1 stats
If you do not see any output, contact Sangoma Tech Support and attach your system log file to the email (/var/log/messages).

You should see:

wanpipe1: Running Get stats command to Echo Canceller device... Done!
***** Echo Canceller Chip Get Stats wanpipe1 *****
wanpipe1: Number of channels currently open 32
:
:

This confirms that the WANPIPE drivers can communicate with the hardware echo canceller chip properly.

4. Make a call through Asterisk. While the call is active ,
1. In the Asterisk CLI, type:
CLI> zap show channel N
where N is your active channel. It should say:
:
:
echocancel: 128 TAPS, currently ON
:
if it does not say "currently ON", check your /etc/asterisk/zapata.conf, if you are bridging TDM to TDM, and you want echo cancelling to be performed, then you should also have "echocancelwhenbridged=yes"

2. if it says "currently ON"
Check that the hardware echocanceller is being enabled on that channel:
#> wanpipemon -i w1g1 -c ehw
It should say:
Sangoma HW echo canceller active on channel N
where N is your active channel.