<div>Dear all,</div>
<div> </div>
<div>I have found a issue when connecting my asterisk soft switch with Acme packet SBC.</div>
<div> </div>
<div>1) No problem for outgoing calls. ie asterisk to Acme SBC</div>
<div> </div>
<div>2) Problem is at incoming. ie Acme to Asterisk</div>
<div> </div>
<div>3) My asterisk is connected to a PSTN switch via SS7 with digium interface. </div>
<div> </div>
<div>4) When I getting a call from Acme, call is connected, but once answered it is disconnected. </div>
<div> </div>
<div>5) I have taken lot of traces and found that session version that I sends on SDP/session progress is not similar to session version on SDP/200 OK message.</div>
<div>Acme also complain me, according to RFC3261, the SDP header should be identical for both 200 OK and Session progress.</div>
<div> </div>
<div><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Arial','sans-serif'">See bullet #2 in ch 13.2.1 (RFC 3261):</span><span style="COLOR: navy"> <br></span><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Courier New'"> o If the initial offer is in an INVITE, the answer MUST be in a</span><span style="COLOR: navy"> <br>
</span><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Courier New'"> reliable non-failure message from UAS back to UAC which is</span><span style="COLOR: navy"> <br></span><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Courier New'"> correlated to that INVITE. For this specification, that is</span><span style="COLOR: navy"> <br>
</span><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Courier New'"> only the final 2xx response to that INVITE. <b>That same exact</b></span><span style="COLOR: navy"> <br></span><b><span style="FONT-SIZE: 10pt; COLOR: red; FONT-FAMILY: 'Courier New'"> answer </span></b><span style="COLOR: navy; FONT-FAMILY: 'Courier New'">MAY also be placed in any provisional responses sent</span><span style="COLOR: navy"> <br>
</span><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Courier New'"> prior to the answer. The UAC MUST treat the first session</span><span style="COLOR: navy"> <br></span><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Courier New'"> description it receives as the answer, and MUST ignore any</span><span style="COLOR: navy"> <br>
</span><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Courier New'"> session descriptions in subsequent responses to the initial</span><span style="COLOR: navy"> <br></span><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Courier New'"> INVITE.</span><span style="COLOR: navy"> <br>
</span></div>
<div><span style="COLOR: navy"></span> </div>
<div><span style="COLOR: navy">6) This was quote from the traces</span></div>
<div><span style="COLOR: navy"></span> </div>
<div><span style="COLOR: navy"><u>SDP at Session Progress (<span lang="EN-GB" style="FONT-FAMILY: 'Courier New'"><font size="3"><font color="#000000">183 Session Progress, with session description</font></font></span>)</u></span></div>
<div><span style="COLOR: navy"></span> </div>
<div><span style="COLOR: navy">
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-FAMILY: 'Courier New'"><font size="3"><font color="#000000"><span style="mso-spacerun: yes"> </span>Message body</font></font></span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-FAMILY: 'Courier New'"><font size="3"><font color="#000000"><span style="mso-spacerun: yes"> </span>Session Description Protocol</font></font></span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-FAMILY: 'Courier New'"><font size="3"><font color="#000000"><span style="mso-spacerun: yes"> </span>Session Description Protocol Version (v): 0</font></font></span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-SIZE: 16pt; COLOR: red; FONT-FAMILY: 'Courier New'"><span style="mso-spacerun: yes"> </span><span style="mso-spacerun: yes"> </span>Owner/Creator, Session Id (o): root 26823 26823 IN IP4 203.189.191.138</span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-SIZE: 16pt; COLOR: red; FONT-FAMILY: 'Courier New'"><span style="mso-spacerun: yes"> </span>Owner Username: root</span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-SIZE: 16pt; COLOR: red; FONT-FAMILY: 'Courier New'"><span style="mso-spacerun: yes"> </span>Session ID: 26823</span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-SIZE: 16pt; COLOR: red; FONT-FAMILY: 'Courier New'"><span style="mso-spacerun: yes"> </span>Session Version: <strong><font size="6">26823</font></strong></span></p>
</span></div>
<div><span style="COLOR: navy"></span> </div>
<div><span style="COLOR: navy"></span> </div>
<div><span style="COLOR: navy"><u>SDP at 200OK</u></span></div>
<div><span style="COLOR: navy"></span> </div>
<div><span style="COLOR: navy">
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-FAMILY: 'Courier New'"><font size="3"><font color="#000000"><span style="mso-spacerun: yes"> </span>Message body</font></font></span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-FAMILY: 'Courier New'"><font size="3"><font color="#000000"><span style="mso-spacerun: yes"> </span>Session Description Protocol</font></font></span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-FAMILY: 'Courier New'"><font size="3"><font color="#000000"><span style="mso-spacerun: yes"> </span>Session Description Protocol Version (v): 0</font></font></span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-SIZE: 14pt; COLOR: red; FONT-FAMILY: 'Courier New'"><span style="mso-spacerun: yes"> </span>Owner/Creator, Session Id (o): root 26823 26824 IN IP4 203.189.191.138</span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-SIZE: 14pt; COLOR: red; FONT-FAMILY: 'Courier New'"><span style="mso-spacerun: yes"> </span>Owner Username: root</span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-SIZE: 14pt; COLOR: red; FONT-FAMILY: 'Courier New'"><span style="mso-spacerun: yes"> </span>Session ID: 26823</span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-SIZE: 14pt; COLOR: red; FONT-FAMILY: 'Courier New'"><span style="mso-spacerun: yes"> </span>Session Version: <strong><font size="6">26824</font></strong></span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-SIZE: 14pt; COLOR: red; FONT-FAMILY: 'Courier New'"><strong></strong></span> </p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="COLOR: red; FONT-FAMILY: 'Courier New'"><font color="#000000" size="4">Hope this info will enough to understand my question. I am grateful to you if you can help me on this to solve the issue very soon.</font></span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-SIZE: 14pt; COLOR: red; FONT-FAMILY: 'Courier New'"><strong><font color="#000000"></font></strong></span> </p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-SIZE: 14pt; COLOR: red; FONT-FAMILY: 'Courier New'"><strong><font color="#000000">Kind Rgds</font></strong></span></p>
<p class="MsoPlainText" style="MARGIN: 0in 0in 0pt"><span lang="EN-GB" style="FONT-SIZE: 14pt; COLOR: red; FONT-FAMILY: 'Courier New'"><strong><font color="#000000">Daminda</font></strong></span></p></span></div>