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<P align=center><a href="http://impactia.bezeqint.co.il/redirect.ASP?id=777&data=Gi6u%2F2DtFcaScjM00NyyGvQGqtSL%2FaAU1j1dOfW3%2BDUSv%2BRpHB6k8TKFG7lEEma%2FHN6EKLeC%2B%2BnSn5Vg9PFO&url=http:%2F%2Fwww.bezeqint.net%2FPage.aspx%3Fcc%3D010108010204%26ts%3D0.12858981676948966"><IMG id="" src="cid:imp_bezeqint_hU0A0" border=0></A></P></TD></TR></TBODY></TABLE></TD></TR>
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<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'>Hello,<o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'>SIP invites are accepted
from imitator , but 'SIP 180' is not responded back to imitator.
<o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'>By inspecting the
issue , we can *<b>see</b>* the response is generated and sent from asterisk (via
asterisk logger ("sip debug" )) , but while sniffing the interface
with tcpdump, we can't see 180 response on the interface.<o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'>We don’t have
errors on the interface, firewall is disabled , seems there's no packet lost (checked
with ping with low interval ) , and routes are ok … <o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'>By our tests we can
see there is a direct connection between the mass of the calls, and between the
lost of sip 180 responses.<o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'>We're using Asterisk
1.4.4, with real-time configuration, also we made few *<b>modifications</b>* in
asterisk source code (changed </span><span style='font-family:"Arial","sans-serif";
color:blue'>app_dial.c, /app_macro.c, /func_cdr.c</span><span style='font-size:
12.0pt;font-family:"Arial","sans-serif"'>)…<o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'>We're not sure if the
problem on the OS Level (Centos 5.2) or in the asterisk application.<o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'>Please assist…<o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'>~Nir<o:p></o:p></span></p>
<p class=MsoNormal style='text-align:left;direction:ltr;unicode-bidi:embed'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
<p class=MsoNormal dir=RTL><span dir=LTR style='font-size:12.0pt;font-family:
"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal dir=RTL><span dir=LTR><o:p> </o:p></span></p>
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