<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=iso-8859-2"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 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:70.85pt 70.85pt 70.85pt 70.85pt;}
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 lang=SL link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi!<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We're having issues with a »funky« ISP – they started advertising a SIP Service-Route header pointing to nowhere (go figure), claiming they need it for their systems to function, and that our UA should not use it, if the initial address is working. <o:p></o:p></p><p class=MsoNormal>Sofia, however, uses the header dilligently, sending the request to the address specified in the header (in my case going nowhere), despite the functioning base SBC address. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Any ideas? Is my ISP off the rocker, or is Sofia maybe a little overzealous?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New";color:#002060;mso-fareast-language:SL'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New";color:#002060;mso-fareast-language:SL'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New";color:#002060;mso-fareast-language:SL'>Žiga Jakhel, MSc<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New";color:#002060;mso-fareast-language:SL'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New";color:#002060;mso-fareast-language:SL'>Integrum d.o.o.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New";color:#002060;mso-fareast-language:SL'>Smoletova 6, 1230 Domžale<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New";color:#002060;mso-fareast-language:SL'>Slovenia, EU<o:p></o:p></span></p></div></body></html>