Hi Klaus, Yes - el-cheapo BRI means the cheapest ISDN BRI card I could find at the local hardware pusher, absolutely no-name locally (Malaysia) manufactured Hisax type 20 card from isdn4linux point of view and yes - chan_modem_i4l. I primarily bought the card just to check out how Asterisk perform with such a card and generally it's ok actually. Just that annoying echo thingy.
I don't think the Snom Phones can adjust the rx/tx gain in any way. I don't question your knowledge, but just out of curiousity - can you explain why I only see this problem when I receive a call on the Snom's - not when I originate a call? Any ideas? Any settings that can be modified in Asterisk? Regards, Lars > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Klaus-Peter > Junghanns > Sent: 27 May 2003 20:02 > To: [EMAIL PROTECTED] > Subject: Re: [Asterisk-Users] Echo cancellation > > > hi Lars, > > does el-cheapo BRI mean chan_modem_i4l? the echo you hear > is caused by todays very sensitive pstn phones. the mic picks > up the sound from the speaker and sends it back to you. > try to reduce the rx and tx volumes of your snoms (if that is > possible), or add rx/tx gain support to chan_modem_i4l like > i have for chan_capi. > > regards > kapejod > > -- > Klaus-Peter Junghanns > > CEO,CTO > Junghanns.NET GmbH > Breite Strasse 13 - 12167 Berlin - Germany > fon: +49 30 79705392 > fax: +49 30 79705391 > iaxtel: 1-700-157-8753 > email: [EMAIL PROTECTED] > http://www.junghanns.net/asterisk > > Am Die, 2003-05-27 um 14.49 schrieb Lars Boegild Thomsen: > > Hi Everybody, > > > > Got a weird problem here I think. Got a setup with an asterisk (current > > from cvs as of a few hours ago) in a box with an el-cheapo ISDN BRI card > > connected to the PSTN network and two Snom phones internally > (one Snom-100 > > and one Snom-200). Dialing between the snom phones or dialing > out to PSTN > > from any of the snom phones works perfectly. > > > > But when I receive a call FROM the PSTN network to any of the > Snom phones, > > the user on the Snom phone is hearing a bad echo of himself. > This echo is > > however NOT heard on the PSTN side. Any hints? > > > > Regards, > > > > Lars... > > > > -- > > Lars Boegild Thomsen > > Technical Director > > JustIT Sdn. Bhd. > > Cell Phone (MY): +60 (16) 323 1999 > > ICQ: 6478559 > > Yahoo Chat: [EMAIL PROTECTED] > > MSN Chat: [EMAIL PROTECTED] > > http://www.justit.ws > > > > _______________________________________________ > > Asterisk-Users mailing list > > [EMAIL PROTECTED] > > http://lists.digium.com/mailman/listinfo/asterisk-users > > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users