Hi, I'm running an asterisk server using passive ISDN cards to connect to the PSTN. SIP to SIP calls on the local network are ok, but unfortunately the echo on outgoing calls (from a software SIP phone to PSTN) is horrible: you'll hear the echo coming back after about 3 seconds. I've been searching the mailing list archives for 'echo' and found out that (a little bit of?) echo is unavoidable when working with ISDN cards, but it seems to me that 3 seconds is just to long and that something else must be wrong. Does anyone have an idea what might be causing this extreme delay and/or how to research this problem?
Server configuration: -P4 2.4Ghz, -512Mb, -40Gb HDD, -Two passive 'Etech' ISDN cards (+ i4l/Hisax) -Slackware 9.1 Clients: softphones, both SJPhone and Sipps Thanks in advance, Aart _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
