Date: Mon, 12 Nov 2007 13:27:13 +0100 From: "Michael Iedema" <michael@askozia.com> To: "Oliver von Bueren" <ovb@ovb.ch> Cc: freebsd-isdn@freebsd.org Subject: Re: echo cancellation / suppression in chan_capi & isdn4bsd by HPS Message-ID: <d3dd0e360711120427y6b3f3a52g8fa10eab52fe9532@mail.gmail.com> In-Reply-To: <4734A29E.2080409@ovb.ch> References: <d3dd0e360711070747xa3a77faw1c7cb8656fc796da@mail.gmail.com> <4734A29E.2080409@ovb.ch>
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On 11/9/07, Oliver von Bueren <ovb@ovb.ch> wrote: > Hi Michael > > Michael Iedema wrote: > > - echosquelch - activates some "light" echo cancellation in the > > chan_capi code itself > > > I have set this to yes in capi.conf (and only this, all others don't > work for me at all) > > Next thing I did to improve the echo situation on calls from IP phones > to ISDN is to change a default value in i4b_global.h from 9 to 10: > #define I4B_ECHO_CANCEL_P_COMPLEX (10) > Without that, it was pretty bad and my wife complained! > That's interesting. I haven't had any echo on my lines so far but now I have another "tool" in case I start to experience some. -Michael
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