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...). I couldn't reproduce the echo problem today but in some occasions the remote POTS called party complains they hear echo of their own voice (the "called" user has a standard analog phone, no headsets, etc., and usually never has echo problems). According to this article: http://www.audiodesignline.com/howto/206800151;jsessionid=UJRLVDJCJT2QMQSNDLPSKHSCJUNN2JVN?pgno=1 I (on the Asterisk system) should take care of the remote user's echo issue, ie. either my BRI card or my Asterisk add-on software should correctly echo cancel. How can one disable hardware echo cancellation altogether on...