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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Recheck on the Codec Acme is sending you and you have allowed on
your asterisk box, issue might be codec mismatch.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Regards<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Vijay Gandhi <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <b>On Behalf Of </b>Kasun
Daminda<br>
<b>Sent:</b> Monday, October 19, 2009 7:26 PM<br>
<b>To:</b> asterisk-users@lists.digium.com<br>
<b>Subject:</b> [asterisk-users] VoIP interconnection with Acme packet SBC<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal>Dear all,<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>I have found a issue when connecting my asterisk soft switch
with Acme packet SBC.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>1) No problem for outgoing calls. ie asterisk to Acme SBC<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>2) Problem is at incoming. ie Acme to Asterisk<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>3) My asterisk is connected to a PSTN switch via SS7 with
digium interface. <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>4) When I getting a call from Acme, call is connected, but
once answered it is disconnected. <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>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.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>Acme also complain me, according to RFC3261, the SDP header
should be identical for both 200 OK and Session progress.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>See bullet #2 in ch 13.2.1 (RFC 3261):</span><span
style='color:navy'> <br>
</span><span style='font-size:10.0pt;font-family:"Courier New";color:navy'>
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:10.0pt;font-family:"Courier New";color:navy'>
reliable non-failure message from UAS back to UAC
which is</span><span style='color:navy'> <br>
</span><span style='font-size:10.0pt;font-family:"Courier New";color:navy'>
correlated to that INVITE. For this
specification, that is</span><span style='color:navy'> <br>
</span><span style='font-size:10.0pt;font-family:"Courier New";color:navy'>
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:10.0pt;font-family:"Courier New";color:red'>
answer </span></b><span style='font-family:"Courier New";
color:navy'>MAY also be placed in any provisional responses sent</span><span
style='color:navy'> <br>
</span><span style='font-size:10.0pt;font-family:"Courier New";color:navy'>
prior to the answer. The UAC MUST treat the
first session</span><span style='color:navy'> <br>
</span><span style='font-size:10.0pt;font-family:"Courier New";color:navy'>
description it receives as the answer, and MUST
ignore any</span><span style='color:navy'> <br>
</span><span style='font-size:10.0pt;font-family:"Courier New";color:navy'>
session descriptions in subsequent responses to the
initial</span><span style='color:navy'> <br>
</span><span style='font-size:10.0pt;font-family:"Courier New";color:navy'>
INVITE.</span><span style='color:navy'> </span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='color:navy'>6) This was quote from the traces</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><u><span style='color:navy'>SDP at Session Progress (</span></u><u><span
lang=EN-GB style='font-family:"Courier New";color:black'>183 Session Progress,
with session description</span><span style='color:navy'>)</span></u><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-family:"Courier New";color:black'> Message body</span><span
style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-family:"Courier New";color:black'> Session
Description Protocol</span><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-family:"Courier New";color:black'> Session
Description Protocol Version (v): 0</span><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-size:16.0pt;font-family:"Courier New";color:red'>
Owner/Creator, Session Id (o): root 26823 26823 IN IP4 203.189.191.138</span><span
style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-size:16.0pt;font-family:"Courier New";color:red'>
Owner Username: root</span><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-size:16.0pt;font-family:"Courier New";color:red'>
Session ID: 26823</span><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-size:16.0pt;font-family:"Courier New";color:red'>
Session Version: </span><strong><span lang=EN-GB style='font-size:24.0pt;
font-family:"Courier New";color:red'>26823</span></strong><span
style='color:navy'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><u><span style='color:navy'>SDP at 200OK</span></u><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-family:"Courier New";color:black'> Message body</span><span
style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-family:"Courier New";color:black'> Session
Description Protocol</span><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-family:"Courier New";color:black'> Session
Description Protocol Version (v): 0</span><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-size:14.0pt;font-family:"Courier New";color:red'>
Owner/Creator, Session Id (o): root 26823 26824 IN IP4 203.189.191.138</span><span
style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-size:14.0pt;font-family:"Courier New";color:red'>
Owner Username: root</span><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-size:14.0pt;font-family:"Courier New";color:red'>
Session ID: 26823</span><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-size:14.0pt;font-family:"Courier New";color:red'>
Session Version: </span><strong><span lang=EN-GB style='font-size:24.0pt;
font-family:"Courier New";color:red'>26824</span></strong><span
style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
style='color:navy'> <o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
lang=EN-GB style='font-size:13.5pt;font-family:"Courier New";color:black'>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.</span><span style='color:
navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><span
style='color:navy'> <o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><strong><span
lang=EN-GB style='font-size:14.0pt;font-family:"Courier New";color:black'>Kind
Rgds</span></strong><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoPlainText style='margin:0in;margin-bottom:.0001pt'><strong><span
lang=EN-GB style='font-size:14.0pt;font-family:"Courier New";color:black'>Daminda</span></strong><span
style='color:navy'><o:p></o:p></span></p>
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