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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal">I am new to Opensips and also new on SIP as well. I am trying to configure Opensips as B2BUA top hiding mode.<o:p></o:p></p>
<p class="MsoNormal">I used the below configuration for that:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">route {<o:p></o:p></p>
<p class="MsoNormal">…………….<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> if(is_method("INVITE")&& !(src_ip == "<my IP>” && src_port ==5060)) /* skip Invite messages generated by the B2BUA*/<o:p></o:p></p>
<p class="MsoNormal"> {<o:p></o:p></p>
<p class="MsoNormal"> b2b_init_request("top hiding");<o:p></o:p></p>
<p class="MsoNormal"> exit; # do not forward this request, another one will be generated<o:p></o:p></p>
<p class="MsoNormal"> };<o:p></o:p></p>
<p class="MsoNormal">…………….<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">With such configuration, I am able to establish a call between my client and server machine.
<o:p></o:p></p>
<p class="MsoNormal">During the call establishment, Opensips B2BUA translated the Call ID with its own call ID [B2B.###.######]<o:p></o:p></p>
<p class="MsoNormal">However, when I tried to terminate the call, Opensips B2BUA does not translate the call ID and its causes the error at the server.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Looking into the looks, it seemed to me that the Opensips B2BUA does not go to search the dialog context while handling BYE message.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The termination works fine for me when I changed the small code in b2b_prescript_f so that the code go to search the dialog when BYE message arrives.<o:p></o:p></p>
<p class="MsoNormal"> if((method_value == METHOD_ACK) ||<o:p></o:p></p>
<p class="MsoNormal"> (method_value == METHOD_BYE)) //BYE Method added here<o:p></o:p></p>
<p class="MsoNormal"> {<o:p></o:p></p>
<p class="MsoNormal"> goto search_dialog;<o:p></o:p></p>
<p class="MsoNormal"> }<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Let me know if I am missing something here?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards<o:p></o:p></p>
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