<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><DIV>Hi</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>I am having some echo on outgoing calls on a pstn line (made from a sip phone)</DIV><DIV>and am looking into some fixes involving rxgain and txgain, but</DIV><DIV>before I go down that road, I want to make sure I have everything</DIV><DIV>setup correctly.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>My zapata.conf has</DIV><DIV><FONT class="Apple-style-span" face="Courier"> </FONT><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">cat /etc/asterisk/zapata.conf </SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">[trunkgroups]</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">; define trunk groups</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;"><BR class="khtml-block-placeholder"></SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">[channels]</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">; hardware channels</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;"><BR class="khtml-block-placeholder"></SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">; default</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">usecallerid=yes</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">hidecallerid=no</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">callwaiting=no</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">threewaycalling=yes</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">transfer=yes</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">echocancel=yes</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">echocancelwhenbridged=yes</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">echotraining=yes</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">signalling=fxs_ks</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;"></SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;"><BR class="khtml-block-placeholder"></SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">; define channels</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">context=pstn-incoming</SPAN></FONT></DIV><DIV><FONT class="Apple-style-span" face="Courier" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">channel => 1-4</SPAN></FONT></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>But, when I run asterisk and ask it about the zap channels, I get that echo cancellation</DIV><DIV>is OFF.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>zap show channel 2</DIV>Echo Cancellation: 128 taps, currently OFF<DIV><BR class="khtml-block-placeholder"></DIV><DIV>Can someone please explain this?</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Thanks</DIV><DIV><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV>Jim Freeze</DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN> </DIV><BR></DIV></BODY></HTML>