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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif";color:#1F497D'>Hello Moacir,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif";color:#1F497D'>Yes, my Kamailio server is on virtual machine & it’s connected direct to the internet.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif";color:#1F497D'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif";color:#1F497D'>Amr<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> sr-users-bounces@lists.sip-router.org [mailto:sr-users-bounces@lists.sip-router.org] <b>On Behalf Of </b>Moacir Ferreira<br><b>Sent:</b> Tuesday, March 19, 2013 10:00 PM<br><b>To:</b> Kamailio Mail List; miconda@gmail.com<br><b>Subject:</b> Re: [SR-Users] NAT & Firewall Issues<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>NATed solutions with no RTP proxies will depend on the client side, not on the server side like in Kamailio. Key things to notice:<br><br>1 - Private IPs (RFC-1918) will always be proxied if you don't change the basic template config;<br>2 - Dual NIC servers require a little bit more knowleadge on Kamailio before you can get it to work properly;<br>3 - Although you can use some tricky configurations, Kamailio is not a SBC like Asterisk/Freeswitch;<br> <br>Having said that, RTPproxy is just good. I mean, it is really good! If it is not working, then you probably have another problem. So the questions are: Are you running your system on virtual machines? What is your topology? How many NICs do you have? Your Kamailio server is connected direct to the Internet or behind a firewall?<br> <br>All the above questions can strongly affect the quality of your calls.<br> <br>Cheers!<br> <br>Moacir<o:p></o:p></span></p><div><div class=MsoNormal align=center style='text-align:center'><span style='font-family:"Calibri","sans-serif"'><hr size=2 width="100%" align=center id=stopSpelling></span></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-family:"Calibri","sans-serif"'>From: <a href="mailto:aelsharqawi@live.com">aelsharqawi@live.com</a><br>To: <a href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a>; <a href="mailto:miconda@gmail.com">miconda@gmail.com</a><br>Date: Wed, 20 Mar 2013 02:09:44 +0800<br>Subject: Re: [SR-Users] NAT & Firewall Issues<o:p></o:p></span></p><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-family:"Calibri","sans-serif"'>Thanks All,<br><br>Yes, please if you've an example using nathelper without rtp proxy let us know.<br><br>now more than ten days I am trying to get kamailio up & running to bypass NAT & firewall blocking but I couldn't.<br><br>After some research I might create a VPN.<br><br>so please if you have any working example for NAT and Firewall let us know.<br><br>Regards,<br>Amr<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>> From: <a href="mailto:julian_q@hotmail.com">julian_q@hotmail.com</a><br>> To: <a href="mailto:miconda@gmail.com">miconda@gmail.com</a>; <a href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><br>> Date: Tue, 19 Mar 2013 11:19:49 -0500<br>> Subject: Re: [SR-Users] NAT & Firewall Issues<br>> <br>> Daniel<br>> <br>> Do you have a config example using nathelper without rtp proxy?<br>> <br>> Regards<br>> <br>> Julián<br>> <br>> <br>> -----Mensaje original-----<br>> De: <a href="mailto:sr-users-bounces@lists.sip-router.org">sr-users-bounces@lists.sip-router.org</a><br>> [<a href="mailto:sr-users-bounces@lists.sip-router.org">mailto:sr-users-bounces@lists.sip-router.org</a>] En nombre de<br>> Daniel-Constantin Mierla<br>> Enviado el: martes, 19 de marzo de 2013 10:00 a.m.<br>> Para: Kamailio (SER) - Users Mailing List<br>> Asunto: Re: [SR-Users] NAT & Firewall Issues<br>> <br>> Hello,<br>> <br>> rtpproxy could bring some delays, as another hop in rtp path. But usually is<br>> not noticeable, unless rtpproxy is on a slow network.<br>> <br>> Look at the traffic coming to rtpproxy and going out (with wireshark or<br>> similar tool) to be sure you have delays from rtpproxy.<br>> <br>> Cheers,<br>> Daniel<br>> <br>> On 3/19/13 8:49 AM, Amr Elsharqawi wrote:<br>> > Hello,<br>> ><br>> > I am facing NAT & Firewall problems how I can solve this issue I've <br>> > tried RTPProxy but voice quality is bad.<br>> ><br>> > any tutorial, please<br>> ><br>> > Amr<br>> ><br>> ><br>> > _______________________________________________<br>> > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing <br>> > list <a href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a> <br>> > <a href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><br>> <br>> --<br>> Daniel-Constantin Mierla - <a href="http://www.asipto.com">http://www.asipto.com</a><br>> <a href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a><br>> Kamailio World Conference, April 16-17, 2013, Berlin<br>> - <a href="http://conference.kamailio.com">http://conference.kamailio.com</a> -<br>> <br>> <br>> <br>> _______________________________________________<br>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list<br>> <a href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><br>> <a href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></span></p></div></div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'><br>_______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list <a href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a> <a href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></span></p></div></div></div></body></html>