Hello again, I have a TE235 with hardware echo canceller - drivers look correctly loaded: lsmod shows: wcte43x 64019 62 oct612x 170083 1 wcte43x dahdi 228088 188 oct612x,wcte43x I am testing with asterisk 13.6.0, libss7-2.0.0, libpri-1.4.15, and dahdi-linux-complete-2.11.0+2.11.0 I am running a loopback test, thanks to Gustavo's help, between the two ports of the TE235. When I activate in chan_dahdi the echo canceller (echocancel=yes), there is a strong background noise / crackling / audio garbled on the audio. Sound is crystal clear when I set it no - same issue if i set it to 128 - though reading the comments of the file, I wasnt expecting much However, when I configure dahdi with ISDN mode, and activate echo, or downgrade to asterisk 11.20.0 & chan_ss7 (trunk), I can activate the echo canceller and experience no noise at all. What could be causing this issue ? Thanks for the help J. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-ss7/attachments/20160112/5c330f48/attachment.html>
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