[asterisk-users] Zapata/DAHDI Disable Hardware echo canceler based on SDA number / displan
Is it possible on a TE220p to deactivate the hardware echo canceler at will ? (With a function in the dialpan for example) example for fax SDA ,beeing able to shutdown the echo canceler could give better results don't you think ? ___ -- 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
Re: [asterisk-users] Zapata/DAHDI Disable Hardware echo canceler based on SDA number / displan
Benoit Plessis wrote: Is it possible on a TE220p to deactivate the hardware echo canceler at will ? (With a function in the dialpan for example) example for fax SDA ,beeing able to shutdown the echo canceler could give better results don't you think ? All echo cancelers using Zaptel/DAHDI already disable themselves when FAX or modem communications are used, based on reception and detection of the CED tone that FAX machines and modems generate to make that happen. You can tell this happened by looking at the channel in Asterisk using 'zap show channel' or 'dahdi show channel' as it will show you that the echo canceler was disabled automatically. -- Kevin P. Fleming Director of Software Technologies Digium, Inc. - The Genuine Asterisk Experience (TM) ___ -- 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
Re: [asterisk-users] Zapata/DAHDI Disable Hardware echo canceler based on SDA number / displan
Kevin P. Fleming wrote: Benoit Plessis wrote: Is it possible on a TE220p to deactivate the hardware echo canceler at will ? (With a function in the dialpan for example) example for fax SDA ,beeing able to shutdown the echo canceler could give better results don't you think ? All echo cancelers using Zaptel/DAHDI already disable themselves when FAX or modem communications are used, based on reception and detection of the CED tone that FAX machines and modems generate to make that happen. You can tell this happened by looking at the channel in Asterisk using 'zap show channel' or 'dahdi show channel' as it will show you that the echo canceler was disabled automatically. I thought the ec gets disabled only by the ec disable tone and not the CED tone. regards Hans ___ -- 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
Re: [asterisk-users] Zapata/DAHDI Disable Hardware echo canceler based on SDA number / displan
Johann Steinwendtner wrote: I thought the ec gets disabled only by the ec disable tone and not the CED tone. The CED tone *is* the echo canceler disable tone. -- Kevin P. Fleming Director of Software Technologies Digium, Inc. - The Genuine Asterisk Experience (TM) ___ -- 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
Re: [asterisk-users] Zapata/DAHDI Disable Hardware echo canceler based on SDA number / displan
On Tue, Jun 17, 2008 at 10:56:06AM -0500, Kevin P. Fleming wrote: Benoit Plessis wrote: Is it possible on a TE220p to deactivate the hardware echo canceler at will ? (With a function in the dialpan for example) example for fax SDA ,beeing able to shutdown the echo canceler could give better results don't you think ? All echo cancelers using Zaptel/DAHDI already disable themselves when FAX or modem communications are used, based on reception and detection of the CED tone that FAX machines and modems generate to make that happen. You can tell this happened by looking at the channel in Asterisk using 'zap show channel' or 'dahdi show channel' as it will show you that the echo canceler was disabled automatically. Karamba ! It mean than that my last option is to put all three digium cards in one box and hope, that it'll fit and that it'll work better :( (actually i'm using one server with two cards (TE220, B410) which is linked with an (slinear) IAX peer to another server with one TDM800 to talk to the fax machine. -- Benoit ___ -- 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
