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<div class=Section1>
<p class=MsoNormal>Dears<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>My scenario is incoming call to asterisk which asterisk in
its term will dial it through its trunk .<o:p></o:p></p>
<p class=MsoNormal>I recognized that Asterisk is sending two invites to My
Trunk GW IP as you can see in the debugging below<o:p></o:p></p>
<p class=MsoNormal>The first is the default and the second when asterisk
receives a 200 OK <o:p></o:p></p>
<p class=MsoNormal>Why Asterisk(B2BUA) is acting like that, and
from where I can get the asterisk sip dial call flow <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Why Asterisk is sending double invite <o:p></o:p></p>
<p class=MsoNormal>GW CLIENT IP=192.168.5.100<o:p></o:p></p>
<p class=MsoNormal>Asterisk IP =192.168.5.150<o:p></o:p></p>
<p class=MsoNormal>Termination GW=192.168.5.200<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Please find sip debug at <o:p></o:p></p>
<p class=MsoNormal><a href="http://pastebin.com/m6e7f454"><span
style='color:windowtext'>http://pastebin.com/m6e7f454</span></a><o:p></o:p></p>
<p class=MsoNormal>and the tethereal below<o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal>Capturing on eth0<o:p></o:p></p>
<p class=MsoNormal><b> 4.865698 192.168.5.100-> 192.168.5.150 SIP/SDP
Request: INVITE sip:3316234335534@192.168.5.150, with session description<o:p></o:p></b></p>
<p class=MsoNormal> 4.871457 192.168.5.150 -> 192.168.5.100SIP Status:
100 Trying<o:p></o:p></p>
<p class=MsoNormal> 4.876797 192.168.5.150 -> 192.168.5.100SIP/SDP
Status: 183 Session Progress, with session description<o:p></o:p></p>
<p class=MsoNormal><b><span style='font-size:14.0pt'> 6.947270
192.168.5.150 -> 192.168.5.200 SIP/SDP Request: INVITE
sip:3316234335534@192.168.5.200, with session description<o:p></o:p></span></b></p>
<p class=MsoNormal> 6.949157 192.168.5.200 -> 192.168.5.150 SIP
Status: 100 Trying<o:p></o:p></p>
<p class=MsoNormal> 12.759311 192.168.5.200 -> 192.168.5.150 SIP/SDP
Status: 183 Session Progress, with session description<o:p></o:p></p>
<p class=MsoNormal> 16.236320 192.168.5.200 -> 192.168.5.150 SIP
Status: 180 Ringing<o:p></o:p></p>
<p class=MsoNormal> 20.250002 192.168.5.200 -> 192.168.5.150 SIP/SDP Status:
200 OK, with session description<o:p></o:p></p>
<p class=MsoNormal> 20.250395 192.168.5.150 -> 192.168.5.200 SIP
Request: ACK sip:3316234335534@192.168.5.200:5060<o:p></o:p></p>
<p class=MsoNormal> 20.251267 192.168.5.150 -> 192.168.5.100SIP/SDP
Status: 200 OK, with session description<o:p></o:p></p>
<p class=MsoNormal><b><span style='font-size:14.0pt'> 20.251752
192.168.5.150 -> 192.168.5.200 SIP/SDP Request: INVITE
sip:3316234335534@192.168.5.200:5060, with session description<o:p></o:p></span></b></p>
<p class=MsoNormal> 20.252986 192.168.5.200 -> 192.168.5.150 SIP
Status: 100 Trying<o:p></o:p></p>
<p class=MsoNormal> 20.274788 192.168.5.200 -> 192.168.5.150 SIP/SDP
Status: 200 OK, with session description<o:p></o:p></p>
<p class=MsoNormal> 20.275143 192.168.5.150 -> 192.168.5.200 SIP
Request: ACK sip:3316234335534@192.168.5.200:5060<o:p></o:p></p>
<p class=MsoNormal> 20.569819 192.168.5.100-> 192.168.5.150 SIP
Request: ACK sip:3316234335534@192.168.5.150<o:p></o:p></p>
<p class=MsoNormal><b><span style='font-size:14.0pt'> 20.570303
192.168.5.150 -> 192.168.5.100SIP/SDP Request: INVITE
sip:551130338000@192.168.5.100, with session description<o:p></o:p></span></b></p>
<p class=MsoNormal> 20.900485 192.168.5.100-> 192.168.5.150 SIP/SDP
Status: 200 OK, with session description<o:p></o:p></p>
<p class=MsoNormal> 20.902604 192.168.5.150 -> 192.168.5.100SIP
Request: ACK sip:551130338000@192.168.5.100<o:p></o:p></p>
<p class=MsoNormal> 32.468119 192.168.5.200 -> 192.168.5.150 SIP
Request: BYE sip:551130338000@192.168.5.150<o:p></o:p></p>
<p class=MsoNormal> 32.468411 192.168.5.150 -> 192.168.5.200 SIP
Status: 200 OK<o:p></o:p></p>
<p class=MsoNormal><b><span style='font-size:14.0pt'> 32.468750
192.168.5.150 -> 192.168.5.100SIP/SDP Request: INVITE
sip:551130338000@192.168.5.100, with session description<o:p></o:p></span></b></p>
<p class=MsoNormal> 32.822154 192.168.5.100-> 192.168.5.150 SIP/SDP
Status: 200 OK, with session description<o:p></o:p></p>
<p class=MsoNormal> 32.822478 192.168.5.150 -> 192.168.5.100SIP
Request: ACK sip:551130338000@192.168.5.100<o:p></o:p></p>
<p class=MsoNormal> 32.822928 192.168.5.150 -> 192.168.5.100SIP
Request: BYE sip:551130338000@192.168.5.100<o:p></o:p></p>
<p class=MsoNormal> 33.140288 192.168.5.100-> 192.168.5.150 SIP Status:
200 OK<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'>
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
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