similar to: Degum Hardware Echo Cancellation

Hi All, When using a Digium card with a hardware echo cancellation module installed, is the only thing required to enable it, is to set echocancel=yes in zapata.conf? I think I remember seeing somewhere that you need to make a change in the zaptel Makefile to allow the echo cancellation to work. Is that correct and if so what is it? Regards David. -------------- next part

I have echocancel=yes in zapata.conf but when I do a zap show channel 1, I notice echo cancellation is turned off. I followed the article that talks about the order in which the statements need to be in zapata.conf to get echo canceling to work: http://lists.digium.com/pipermail/asterisk-users/2005-June/110615.html But it is still not working. Does anyone know how to get echo

Hi, I have a box with Debian Sarge, Asterisk 1.2.1 (and zaptel 1.2.1) and a TDM2400P with echo canceller. I installed the card but no echo cancellation is being made...seems like the echo canceller module does not work, infact the software cancellation is working. My zapata.conf has echocancel = 128 and echocancelwhenbridged = yes but no echotraining parameter which gives a warning. I found

We have been pretty much able to solve our echo problems, except for the primary mode in which we desire to operate our system. See system diagram at bottom. Prior to making adjustments to cancel echos (all echocancel=no): Call Type Result (Before) --------- --------------- CP <- LEC PRI * TDMoE * FXO -> AP

hi, i've got big problems with the Echo Cancellation of Asterisk. Entering "zap show channel 1" (while telephoning / making a call) gets me this line: "Echo Cancellation: 128 taps, currently OFF" And there's a heavy echo noticeable. When I'am called, Echo Cancellation is enabled, and there's no echo noticeable! This is my setup: ISDN(DECT)-Telephone

Good Day List, I'm having some issues with echo cancel on my Asterisk box, and have done extensive reading and have gained some useful pointers from this list but have a couple of hopefully fairly simple questions. The Asterisk box is connected via 20 FXO ports on a TDM2400 with the Hardware echo cancel module. Echo cancel almost works, but the users hear what they describe as a

Hi, I'm having some questions related to echo cancellation configuration on a Digium board enabled systems (B410P, TE420, TE420B, ....) for cases when a hardware ech canceller is present or not. I read in TEXXX manual that when setting echocancel=yes in chan_dahdi.conf on a VPMOCT64-equiped system, 128ms hardware echo cancellation was enabled. 1. I'm correct thinking that it is then

I've enclosed by config... I've tried everything from lowering the tx/rx gains.. to toying with 32/64/128 echo canceling taps... at 256 echoing is really bad... I've even tried recompiling the zaptel driver with the MARK2 super echo canceling support... I still have a very slight echo that I simply can not get rid of.... this echo is ONLY when going VoIP to POTS.. and I understand

Hi Francois, I kwnow, but I have "DSP:on" also if i not have an hardware echocan module :/ and I always have "Echo Cancellation: 0 taps, currently OFF". This is my zapata.conf [channels] language = it usecallerid = yes callwaiting = yes usecallingpres = yes callwaitingcallerid = yes threewaycalling = yes cancallforward = yes callreturn = yes switchtype = euroisdn

Hi, I recently installed a TE120P in my lab with a full voice PRI (23 channels + 1 D channel). Everything is working well except echo cancellation; for the most part this isn't an issue unless one of the users is in a conference. I'm getting the following error when a call is picked up (incoming or outgoing): [Feb 25 12:54:01] WARNING[8661]: chan_zap.c:1437 zt_enable_ec: Unable to

Hi all, 1. Just bought a new TE411P and about to install it replacing the existing TE410P. I am assuming I need to set echocancel=no and echocancelwhenbridged=no now that it will be done in hardware, correct? 2. Is there any way to monitor hardware echo cancellation to ensure it is working (apart from being on a call)? 3. The Digium webite says "By supporting 16ms with 128 channels or

Hi All, I'm having problems trying to get a TE120P operational in Canada. I keep getting a congestion error when I try to make a call. I'm not sure if my switching, parity, etc is correct. I'm hoping that someone will be able to verify my config. The Telco is SaskTel, with a 10 channel 50 DDI service. Zap show channels show and ztcfg -vv looks ok and the zttool show

Hi, i am from Germany, so excuse my School English. I use Asteriks 1.2.12.1, zaptel 1.2.9 and mISDN Rc25 - since my update of Asterisk 2 wooks ago, Echos accure in my SIP Calls. I use SNOM 360, sometimes there is no echo (for example if i call myself via SIP->Asterisk->SIPProvider->TELEKOM->ISDN) but if i call other people there occures Echo many times. The Routing is always the

I've spent all day today trying to fix an echo problem and I've made no ground whatsoever. I have Digium TDM400 with 3 FXO & 1 FXS. I've tried this computer at two completely different sites with different phone providers. I've tried compiling & installing different versions of Zaptel (currently running 1.4.0, started at 1.2.9 and worked my way up). I've tried

I'm using bristuffed Asterisk with ISDN/ZAPHFC I have VERY ugly (outgoing) sound through ISDN/HFC if echocancel=yes in zapata.conf, but without echocancel I have bad (incoming) echo Through PSTN/FXO sound is ok with or without echocancel. I tried other echo cancellers (in zconfig.h) two times: ECHO_CAN_KB1 (this was default) ECHO_CAN_MARK2 ECHO_CAN_MG2 after any change I compiled (make

Hi! I'm here again with echo canceller problem... :-( I think I've done everything to enable echo canceller feature, but it still doesn't work... Can anybody tell me if there is some error or something missing in this configuration please? I'm using Eicon Diva Server 4Bri. http://www.eicon.com/worldwide/products/MediaGateways/disv4bri.htm?techspec=1&regID=4999 Card

I have seen conflicting references in regards to the Digium Wildcard TE411P echo settings in zapata.conf. Does anyone have the official word on this? Should echo cancel be enabled in zapata.conf if the card has built in EC? If so, should a particular EC method be compiled into the zaptel build? My reference, which has echo: My zaptel is 1.2.5 context=from-pstn switchtype=national

Hi, all. I'm a programmer lived in Korea. This time, I was investingating echo cancellation and found speex echo cancellation related API. But echo stilll remains. 1. echo cancellation using only files works propertly. 2. echo cancellation using sound device works not propertly. You can download test files as followed. http://www.vdream.co.kr/temp/ec/echocancel.wmv ( testing screen capture

Hi guys, I'm running a Sirrix PCI4S0 quad BRI card in a box with Asterisk CVS-HEAD (20050614). Something I've come across is that with 'echocancel = yes' in /etc/asterisk/sirrix.conf the echo is unbearably loud - so loud in fact that the echo distorts. To remedy this I've set 'echocancel = no' and disabled the echo cancellation. With the echo cancellation disabled

Hey everybody, I have a situation where we have 2 Asterisk (CVS as of 08/25/2005) connected via IAX. On the corporate side, we have 1 TE110P connecting to a Definity G3R and it's connecting to a TN464F card, giving a 23 channel connection. I have echocancel=yes, echotraining=yes and echocancelwhenbridged=yes. One the remote office side, they a Adit 600 channel bank for 10 outside