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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I was looking at packet traces of the OPTIONS packets
generated by natping and it appears that at least in my implementation of
OpenSer 1.0.0 the “To: sip” line has no username which causes many
UA’s require in order to respond to the OPTIONS packet. I was wondering
if this was intentional or if it would be possible to change this behavior or
at least make it an configurable option. I think a lot could be done/determined
based on the results of the reply; including determining if the packet is
really reaching the UA. I realize that some UA’s may not support this
feature but I think more do than not.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Just my observations/thoughts. Please give me reasons for
this being a good or bad idea…. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'>Current Packet:<o:p></o:p></span></font></b></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>U 2006/01/20 16:27:10.410848 111.15.13.67:5060 -> 111.16.187.102:5060<o:p></o:p></span></font></p>
<p class=MsoNormal><i><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-style:italic'>OPTIONS sip:111.16.187.102:5060 SIP/2.0.<o:p></o:p></span></font></i></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Via: SIP/2.0/UDP 111.15.13.67:5060;branch=0.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>From: sip:ping@intervoz.com.br;tag=ec30e9b7.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>To: sip:111.16.187.102:5060.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Call-ID: b3fdcfa3-71a82db5-445151@111.15.13.67.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>CSeq: 1 OPTIONS.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Content-Length: 0.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'>Suggested Packet:<o:p></o:p></span></font></b></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>U 2006/01/20 16:27:10.410848 111.15.13.67:5060 -> 111.16.187.102:5060<o:p></o:p></span></font></p>
<p class=MsoNormal><i><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-style:italic'>OPTIONS sip:<b><span style='font-weight:
bold'><username from location table></span></b>@111.16.187.102:5060
SIP/2.0.<o:p></o:p></span></font></i></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Via: SIP/2.0/UDP 111.15.13.67:5060;branch=0.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>From: sip:ping@intervoz.com.br;tag=ec30e9b7.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>To: sip:111.16.187.102:5060.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Call-ID: b3fdcfa3-71a82db5-445151@111.15.13.67.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>CSeq: 1 OPTIONS.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Content-Length: 0.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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