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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Theo,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Almost certainly the Snom is trying to be NAT ‘helpful’ so doing STUN or some such thing by discovering the NAT external address and including it in the SIP header. This fools the SPCE into thinking the device is not behind a NAT device.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Please disable any NAT ‘helper’ stuff which is usually not helpfull.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Regards<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>John<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> spce-user-bounces@lists.sipwise.com [mailto:spce-user-bounces@lists.sipwise.com] <b>On Behalf Of </b>Theo<br><b>Sent:</b> 15 February 2013 11:58<br><b>To:</b> Daniel Grotti<br><b>Cc:</b> spce-user@lists.sipwise.com<br><b>Subject:</b> Re: [Spce-user] Upper registration to Asterisk - phones unreachable after a while<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>HI Daniel<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'>SCPE - open internet, no NAT in front, nor any firewall. Device is on a simple network with a TP-Link router which means it's behind NAT. What could be the cause of the SCPE not detecting NAT?<o:p></o:p></p><div><p class=MsoNormal>On Fri, Feb 15, 2013 at 1:54 PM, Daniel Grotti <<a href="mailto:dgrotti@sipwise.com" target="_blank">dgrotti@sipwise.com</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal>Hi Theo,<br>If SPCE didn't figure out that your client is behind nat, then it won't perform the nat_sipping.<br>What are the network of your client,of your NAT device and of your SCPE ?<span style='color:#888888'><br><br><span class=hoenzb>Daniel</span></span><o:p></o:p></p><div><div><p class=MsoNormal><br><br><br><br><br>On 02/15/2013 12:37 PM, Theo wrote:<o:p></o:p></p></div></div></div><div><div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal>Hi <o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'>Nope, the problem persists. Been fine for a couple of hours. Then all of a sudden - local user offline. Will try 2, 3 times, then the 4th time it's online again, presumably because a registration came through or whatever.......<o:p></o:p></p><div><p class=MsoNormal>On Fri, Feb 15, 2013 at 10:28 AM, Theo <<a href="mailto:axessofficetheo@gmail.com" target="_blank">axessofficetheo@gmail.com</a>> wrote:<o:p></o:p></p><p class=MsoNormal>Hi Daniel <o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I have just tried that - let's see if it does the trick. I had assumed that a new registration attempt every 30 seconds or so would do the trick. Strange enough, it DOES sent a registration, but the webinterface on sipwise shows the last registration as 30 minutes ago. It also shows, under active registrations NAT = no. But the phone is behind NAT - is there a setting similar to ASTERISK where one specifies that or is it meant to just detect it?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Cheers<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Theo <o:p></o:p></p><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>On Fri, Feb 15, 2013 at 10:16 AM, Daniel Grotti <<a href="mailto:dgrotti@sipwise.com" target="_blank">dgrotti@sipwise.com</a>> wrote:<o:p></o:p></p><div><p class=MsoNormal>Hi, <o:p></o:p></p><div><p class=MsoNormal>if the client is behind nat you can try to set a nat keep alive on the snom. <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Daniel<o:p></o:p></p></div><div><p class=MsoNormal><br><br><br>Sent from Samsung Mobile <o:p></o:p></p></div><div><div><p class=MsoNormal><br><br><br>African Axess African Axess <<a href="mailto:axessofficetheo@gmail.com" target="_blank">axessofficetheo@gmail.com</a>> wrote:<br><br><br>Hi <o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>With the help of this list I have upper registration working and can phone between extensions. However, at (seemingly) random, the devices cannot be reached. All appears fine and they appear registered, but when I make the call it doesn't work, until I log into my device and click "re-register". The proxy log is fairly clear:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Feb 15 08:13:22 sipwise /usr/sbin/kamailio[2138]: INFO: <script>: Local user offline - <a href="mailto:R=sip:user404@my.domain.com:5060;uuid=c6d7434d-5026-4394-86d5-d3c43d2fd2cc" target="_blank">R=sip:user404@my.domain.com:5060;uuid=c6d7434d-5026-4394-86d5-d3c43d2fd2cc</a><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>telling me that the user is offline. Question of course is - how do I avoid them going offline. The phones are set to re-register every 60 seconds, but that doesn't seem to do the trick. Once this happens, only a physical "re-register" the phone by doing it manually gets it back up again. This is with SNOM 300 phones.<o:p></o:p></p></div></div></div></div></div><p class=MsoNormal><o:p> </o:p></p></div></div></div></div><p class=MsoNormal><o:p> </o:p></p></div></blockquote><p class=MsoNormal><o:p> </o:p></p></div></div></div></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>