<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Thanks for the response,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Keys: Help Display mode Restart statistics Order of fields quit<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Packets Pings<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Host Loss% Snt Last Avg Best Wrst StDev<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> 1. 10.77.0.254 0.0% 18911 0.2 0.2 0.2 0.2 0.0<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> 2. 192.168.5.1 0.0% 18911 2.4 2.4 2.3 2.4 0.0<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> 3. 10.77.4.22 0.0% 18911 2.7 3.1 2.4 4.1 0.5<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>1 is my switch at DC, 2 is unknown on fibre, 3 is endpoint ATA device at site about 140km away<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Duplex is set correctly on all interfaces, I don’t see anything on the fibre part of network it is all L2.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I am not sure if it is a network issue, as the wireshark capture I was doing on the server that FS resides on, and it was reporting the stream going from FS to endpoint had the wrong timestamps.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><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";mso-fareast-language:EN-AU'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:EN-AU'> freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] <b>On Behalf Of </b>Robert-IPhone<br><b>Sent:</b> Saturday, 12 May 2012 10:09 AM<br><b>To:</b> FreeSWITCH Users Help<br><b>Cc:</b> <freeswitch-users@lists.freeswitch.org><br><b>Subject:</b> Re: [Freeswitch-users] RTP media Issue<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Start with running an extended "mtr" between the locations.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Maybe you are dealing with a latency issue.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I've also seen issues with duplexing.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>So look at low level network issues<o:p></o:p></p></div><div><p class=MsoNormal><br><br>Sent from my iPhone 4S<o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><br>On May 11, 2012, at 5:58 PM, Mr Nathan Downes <<a href="mailto:nathandownes@hotmail.com">nathandownes@hotmail.com</a>> wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>Hi<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>First time trying this mailing list, I have my FS server in a data centre, which feeds site a, site b etc. over a fibre network. We are having really bad call quality issues at one of the sites. The residents report that every second or 2 there is a hiccup in the incoming voice and they miss a portion of the voice. It is consistent and affects everybody. I did some wireshark tracing of both sides of the calls (ext – fs and fs – provider) and to me it appears packets coming from my server have a wrong timestamp every second or so. The server is not over loaded and is pretty default Ubuntu 10.04 LTS, latest FS Head on there. I spent a week trying to diagnose with both the fibre provider and trunk provider but we couldn’t figure out the cause. I then tried putting rtp-rewrite-timestamps in both the profiles (external one to provider, and internal one specifically for fibre company) and the problem appears to have gone away. I would like to figure out what is/was causing the issue and also find out if that option puts any extra overhead on the server. If there is almost no overhead I would probably leave it on and just assume I need I for this specific connection. I don’t have the issue at another site over same fibre network and trunk provider, and people connecting direct over internet don’t suffer same problem. I have about 2gb of wireshark traces I can put online if required.<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Thanks, Nathan<o:p></o:p></p></div></blockquote><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-AU'>_________________________________________________________________________<br>Professional FreeSWITCH Consulting Services:<br><a href="mailto:consulting@freeswitch.org">consulting@freeswitch.org</a><br><a href="http://www.freeswitchsolutions.com">http://www.freeswitchsolutions.com</a><br><br>FreeSWITCH-powered IP PBX: The CudaTel Communication Server<br><a href="http://www.cudatel.com">http://www.cudatel.com</a><br><br>Official FreeSWITCH Sites<br><a href="http://www.freeswitch.org">http://www.freeswitch.org</a><br><a href="http://wiki.freeswitch.org">http://wiki.freeswitch.org</a><br><a href="http://www.cluecon.com">http://www.cluecon.com</a><br><br>FreeSWITCH-users mailing list<br><a href="mailto:FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</a><br><a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users<br><a href="http://www.freeswitch.org">http://www.freeswitch.org</a><o:p></o:p></span></p></div></blockquote></div></body></html>