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<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">Dear Mr. Jacob and the Sifira team</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">chan_ss7 is a great project and it is progressing at a great pace. </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"></span> </p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">I am sure that soon it will catch-up PRI functionality available for asterisk. chan_ss7 is a great advantage to asterisk acceptance in the carrier world.
</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">We have been using chan_ss7 since its first launch of ver 0.3. And we are successfully using it in our production system with 4 E1 then and now we have added another 4 E1s making it all together 8 E1.
</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"></span> </p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">We have around 4500 very cooperative registered SIP, IAX and OOH323 users and around 2500 concurrently connected users.
</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">Its running very very stable and I also patched the latest 0.8.3d patch as well. We have up to 242 users using chan_ss7 during peak hours.
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<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">We have only one last issue that some time from PSTN end the ringing tone disappears. (May be some SS7 timers issues).</span>
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<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">Our system is a good reference for Sifira team please feel free if I can be of any help to test and try various options on our system
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<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">Like we have to separate SS7 links on two boxes connected via IAX etc. etc.</span></p>
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<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">Looking forward for the release of 0.8.4 version :)</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">Cheers.</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial"> </span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">Michael Tan</span><span style="FONT-FAMILY: Arial"></span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">Telonix</span></p>
<p class="MsoNormal" style="BACKGROUND: white; MARGIN: 0in 0in 0pt"><span style="FONT-FAMILY: Arial">Singapore</span><span style="FONT-FAMILY: Arial">.</span></p></div>
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<div><span class="gmail_quote">On 5/2/06, <b class="gmail_sendername"><a href="mailto:asterisk-ss7-request@lists.digium.com">asterisk-ss7-request@lists.digium.com</a></b> <<a href="mailto:asterisk-ss7-request@lists.digium.com">
asterisk-ss7-request@lists.digium.com</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Send asterisk-ss7 mailing list submissions to<br> <a href="mailto:asterisk-ss7@lists.digium.com">asterisk-ss7@lists.digium.com
</a></blockquote>
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<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Date: Mon, 1 May 2006 09:08:27 +0200 (CEST)<br>From: Jacob Tinning <<a href="mailto:tinning@sifira.dk">
tinning@sifira.dk</a>><br>Subject: RE: [asterisk-ss7] asterisk oh323 - chan-ss7 echo problem<br>To: <a href="mailto:asterisk-ss7@lists.digium.com">asterisk-ss7@lists.digium.com</a><br>Message-ID: <<a href="mailto:Pine.LNX.4.58.0605010902001.22994@ash.int.sifira.dk">
Pine.LNX.4.58.0605010902001.22994@ash.int.sifira.dk</a>><br>Content-Type: text/plain; charset="us-ascii"<br><br>On Fri, 28 Apr 2006, Luciano Ramos wrote:<br><br>> I've checked the source code of chan_ss7.c and it doesn't have any calls to
<br>> turn the echo canceller on, is any workaround available in the meantime the<br>> next release of chan_ss7 is released?<br><br>Well.. chan_ss7-0.8.4 is not official yet, but attached to this mail is a<br>patch. It includes the echo-cancellation + a fix for the T1-timer crash.
<br><br>The patch require a small modification to your ss7.conf file.<br>For each [link-XXX] section, add the following three lines:<br><br>; echocancel: allways | 31speech | no<br>echocancel=allways<br>; echocan_taps: 32 | 64 | 128 | 256
<br>echocan_taps=32<br>; echocan_train: between 10ms and 1000ms<br>echocan_train=350<br><br>The "echocancel=31speech" should be used if you only want to enable<br>echo-cancellation on 3.1KHz speech calls.<br><br>
Mvh. Jacob<br><br>--<br>Jacob Tinning<br>System Developer SIFIRA A/S<br><br></blockquote></div>