Hello, I have read the articles on echo cancellation (http://www.voip-info.org/wiki/view/Asterisk), but couldn't find a solution to my problem.
We are running Asterisk 1.4.12 together with an EICON DIVA SERVER BRI-2M PCI (current driver from EICON) and some SNOM 300/360. There are few clients where we recognize echoes on both sides when we call them via ISDN. With some of these clients we don't even hear their name, when they pick up the phone, because Asterisk connects the call to early. I don't know whether these two effects belong together but both are rather disturbing. Here is our capi.conf: [general] nationalprefix=0 internationalprefix=00 rxgain=1 txgain=0.8 language=de [ISDN1] incomingmsn=8304498,8304499 isdnmode=msn group=1 controller=1 softdtmf=1 context=isdnin echosquelch=2 echocancel=yes echotail=64 callgroup=1 devices=2 I have changed the values for rxgain and txgain but that didn't change much. Thanks for any hint or advice, Stefan -- ******************************************** in-put GbR - Das Linux-Systemhaus Stefan-Michael Guenther Geschaeftsfuehrer Moltkestrasse 49 D-76133 Karlsruhe Tel./Fax : +49 (0)721 / 83044 - 98/93 http://www.in-put.de ******************************************** Schulungen Installationen Beratung Support Voice-over-IP-Loesungen ******************************************** _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users