<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">It's tough to say why a voice would start sounding like a robot. There are so many variables that could effect your Asterisk server.<div><br></div><div>I always go for process of elimination when I have a problem similar to this with call quality.</div><div><br></div><div>What I would do is install an end point on the same local network / subnet as your asterisk server (either a hard phone or a soft phone like X-Lite by Counterpath). Register the phone locally with your Asterisk server and make some calls or put an echo tester up.</div><div><br></div><div>If things sound good, you know your Asterisk server is working just fine, and the problems lies somewhere on your network between the Asterisk server and whatever gateway / device. If it sounds awful, and the codecs match, then it's time to start troubleshooting the server.</div><div><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div><br class="Apple-interchange-newline"><br></div><div>_____________________________</div><div><br></div><div>Darren Sessions</div><div><a href="mailto:dmsessions@gmail.com">dmsessions@gmail.com</a></div><div><a href="http://www.darrensessions.com">http://www.darrensessions.com</a></div><div><font class="Apple-style-span" face="Arial"><span class="Apple-style-span" style="line-height: 14px; white-space: pre-wrap; ">_____________________________</span></font></div><div><br></div></span></div></span></div></span></div></span></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"> </div><br><div><div>On Aug 22, 2008, at 3:14 AM, bilal ghayyad wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Dear Darren;<br><br>You might be right because one day it happened with me and the situation was same like this as following:<br><br>The status that the ping result is very good for all partied (Asterisk machine, IP Phones on the Internet), and no problem in the processor utilization or RAM or hard disk space.<br><br>Previously, we changed the DSL router and it worked fine !!<br><br>But what can I do on the Asterisk level to overcome the problem?<br><br>I already enabled the jitter on the IAX and SIP, but did not resolved. And I am using the G729 codec and sometimes I use GSM.<br><br><br>Any advise for the robot voice with weak battery :) ?!<br><br>Regards<br>Bilal<br><br>--- On Thu, 8/21/08, Darren Sessions <<a href="mailto:dmsessions@gmail.com">dmsessions@gmail.com</a>> wrote:<br><br><blockquote type="cite">From: Darren Sessions <<a href="mailto:dmsessions@gmail.com">dmsessions@gmail.com</a>><br></blockquote><blockquote type="cite">Subject: Re: [asterisk-users] Suddenly the voice become like robot (cutting), like sick man<br></blockquote><blockquote type="cite">To: <a href="mailto:bilmar_gh@yahoo.com">bilmar_gh@yahoo.com</a><br></blockquote><blockquote type="cite">Date: Thursday, August 21, 2008, 9:47 PM<br></blockquote><blockquote type="cite">I doubt recompiling is going to help you unless you've<br></blockquote><blockquote type="cite">got a very <br></blockquote><blockquote type="cite">unstable system (hard drive going out or something), and<br></blockquote><blockquote type="cite">then you've <br></blockquote><blockquote type="cite">got bigger things to worry about then anyways.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">You should install (if you haven't already) the<br></blockquote><blockquote type="cite">'top' program. Top <br></blockquote><blockquote type="cite">gives you a nice set of system statistics and a list of<br></blockquote><blockquote type="cite">processes.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">If you're only having issues on the IP origination side<br></blockquote><blockquote type="cite">of things, I <br></blockquote><blockquote type="cite">would start checking your bandwidth and latency on your<br></blockquote><blockquote type="cite">network.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Is the originating end point on the Internet? or local?<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">_____________________________<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Darren Sessions<br></blockquote><blockquote type="cite"><a href="mailto:dmsessions@gmail.com">dmsessions@gmail.com</a><br></blockquote><blockquote type="cite"><a href="http://www.darrensessions.com">http://www.darrensessions.com</a><br></blockquote><blockquote type="cite">_____________________________<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">On Aug 21, 2008, at 4:55 PM, bilal ghayyad wrote:<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><blockquote type="cite">Dear Darren;<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">I discovered that calling from the Asterisk to the IP<br></blockquote></blockquote><blockquote type="cite">Phone <br></blockquote><blockquote type="cite"><blockquote type="cite">Extension (like calling from mobile to digium and then<br></blockquote></blockquote><blockquote type="cite">enter the IP <br></blockquote><blockquote type="cite"><blockquote type="cite">Phone extension, or calling from fxs to the IP Phone<br></blockquote></blockquote><blockquote type="cite">extension), it <br></blockquote><blockquote type="cite"><blockquote type="cite">goes very good without any problem.<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">But calling from the same IP Phone to another IP Phone<br></blockquote></blockquote><blockquote type="cite">or to any <br></blockquote><blockquote type="cite"><blockquote type="cite">mobile (via fxo port) or to the fxs, it cause the<br></blockquote></blockquote><blockquote type="cite">problem (voice <br></blockquote><blockquote type="cite"><blockquote type="cite">become very very bad, like robot with weak battery or<br></blockquote></blockquote><blockquote type="cite">sick man).<br></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Another way for the problem, if I called from another<br></blockquote></blockquote><blockquote type="cite">Asterisk PBX <br></blockquote><blockquote type="cite"><blockquote type="cite">to our Asterisk PBX (that has the problem) and the<br></blockquote></blockquote><blockquote type="cite">call was via IAX, <br></blockquote><blockquote type="cite"><blockquote type="cite">and I was need to reach to the IP Phone, then I hear<br></blockquote></blockquote><blockquote type="cite">the voice like <br></blockquote><blockquote type="cite"><blockquote type="cite">robot with weak battery.<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">So, the problem appear if the call originator was IP<br></blockquote></blockquote><blockquote type="cite">and not TDM. <br></blockquote><blockquote type="cite"><blockquote type="cite">What could be the reason for the problem? No one did<br></blockquote></blockquote><blockquote type="cite">any change, I <br></blockquote><blockquote type="cite"><blockquote type="cite">am sure, it suddenly become like this.<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Any help?<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Regards<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Bilal<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">--- On Thu, 8/21/08, Darren Sessions<br></blockquote></blockquote><blockquote type="cite"><<a href="mailto:dmsessions@gmail.com">dmsessions@gmail.com</a>> wrote:<br></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">From: Darren Sessions <<a href="mailto:dmsessions@gmail.com">dmsessions@gmail.com</a>><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Subject: Re: [asterisk-users] Suddenly the voice<br></blockquote></blockquote></blockquote><blockquote type="cite">become like robot <br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">(cutting), like sick man<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">To: <a href="mailto:bilmar_gh@yahoo.com">bilmar_gh@yahoo.com</a>, "Asterisk Users<br></blockquote></blockquote></blockquote><blockquote type="cite">Mailing List - Non- <br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Commercial Discussion"<br></blockquote></blockquote></blockquote><blockquote type="cite"><<a href="mailto:asterisk-users@lists.digium.com">asterisk-users@lists.digium.com</a>><br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Date: Thursday, August 21, 2008, 6:13 PM<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">I'd run top on the server to see if the CPU<br></blockquote></blockquote></blockquote><blockquote type="cite">utilization<br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">is going<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">through the roof. If you use AGI, make sure there<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">aren't any orphaned<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">processes consuming resources.<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">If all else fails on the software side of things,<br></blockquote></blockquote></blockquote><blockquote type="cite">I'd<br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">restart the<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">server.<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">_____________________________<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Darren Sessions<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><a href="mailto:dmsessions@gmail.com">dmsessions@gmail.com</a><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><a href="http://www.darrensessions.com">http://www.darrensessions.com</a><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">_____________________________<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">On Aug 21, 2008, at 4:03 PM, bilal ghayyad wrote:<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Hi All;<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">My asterisk version is 1.4.19.2 and it<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite">contains one<br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">digium card of 2<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">fxs and 2 fxo ports, it was working great for<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite">more<br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">than one month<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">without any problem.<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Suddenly, any call will be done, then voice<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite">becoming<br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">like robot (or<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">sick man), it slow and cutting.<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">I restarted the machine, but it is the same<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite">!!!<br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">I checked the RAM which is 1 GB and I found a<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite">lot of<br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">space.<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Any advise what could be the problem?<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Regards<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Bilal<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite">_______________________________________________<br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">-- Bandwidth and Colocation Provided by<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><a href="http://www.api-digital.com">http://www.api-digital.com</a> --<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">AstriCon 2008 - September 22 - 25 Phoenix,<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite">Arizona<br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Register Now: <a href="http://www.astricon.net">http://www.astricon.net</a><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">asterisk-users mailing list<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">To UNSUBSCRIBE or update options visit:<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><a href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</a><br></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote 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