asterisk users - Oct 2010 - echo on TE122

I have setup a asterisk with freepbx, a TE122 and i have an ISDN.
My problem now is that callers are experiencing echo. checked on dmesg i 
saw this:

# dmesg -c
dahdi: Disabled echo canceller NLP because of CED rx detected on channel 2

i searched google but found no soolution and i have no idea what that 
error means.
below are other details that might be of value.

# dahdi_hardware
pci:0000:04:00.0     wcte12xp+    d161:8001 Wildcard TE122

# dahdi_scan
[1]
active=yes
alarms=OK
description=Wildcard TE122 Card 0
name=WCT1/0
manufacturer=Digium
devicetype=Wildcard TE122
location=PCI Bus 04 Slot 01
basechan=1
totchans=31
irq=20
type=digital-E1
syncsrc=1
lbo=0 db (CSU)/0-133 feet (DSX-1)
coding_opts=AMI,HDB3
framing_opts=CCS,CRC4
coding=HDB3
framing=CCS



chan_dahdi.conf contains:
echocancel=yes
echocancelwhenbridged=yes
echotraining=800

On 10/20/2010 03:20 AM, Ron wrote:
> I have setup a asterisk with freepbx, a TE122 and i have an ISDN.
> My problem now is that callers are experiencing echo. checked on dmesg i 
> saw this:
> 
> # dmesg -c
> dahdi: Disabled echo canceller NLP because of CED rx detected on channel 2
> 
That's saying that the echo canceller activated for channel 2 is
disabled because it believes that the far side is a fax machine or modem.
> i searched google but found no soolution and i have no idea what that 
> error means.
> below are other details that might be of value.
If you're not actively trying to run faxes through your system, you
could try enabling CONFIG_DAHDI_NO_ECHOCAN_DISABLE in
include/dahdi/dahdi_config.h.

Cheers,
Shaun

-- 
Shaun Ruffell
Digium, Inc. | Linux Kernel Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at: www.digium.com & www.asterisk.org