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<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">I am running Trixbox PRO.</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">I don’t know if this is a config issue, since it
would seem to be odd that an inbound SIP call into asterisk would answer the
call even during ringing.</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Check out the SIP trace below.</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">It’s a call from the PSTN into an asterisk DID
assigned to an ext.</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">On the PSTN side the caller heard ringing before the call
was answered…yet on the SIP side there is no 18x response back just:</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Here is a trace of the INBOUND side (PSTN into SBC) and
OUTBOUND (SBC into Asterisk):</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">INCOMING INTO SBC</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Feb 17 15:01:40 2010 [x.x.x.x] ==> [y.y.y.y]
INVITE sip:2015555555@y.y.y.y SIP/2.0</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">
m=audio
20828 RTP/AVP 0 18 8 101 c=IN IP4 x.x.x.x </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">
a=fmtp:18 annexb=no </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Feb 17 15:01:40 2010 [y.y.y.y] ==> [x.x.x.x]
SIP/2.0 100 Trying</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Feb 17 15:01:40 2010 [y.y.y..y] ==> [x.x.x.x]
SIP/2.0 200 OK</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">
m=audio 21642 RTP/AVP 0 c=IN IP4 y.y.y.y </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Feb 17 15:01:40 2010 [x.x.x.x] ==> [y.y.y.y] ACK
sip:y.y.y.y:5060 SIP/2.0</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Feb 17 15:01:40 2010 [x.x.x.x] ==> [y.y.y.y] ACK
sip:y.y.y.y:5060 SIP/2.0</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Feb 17 15:02:31 2010 [y.y.y.y] ==> [x.x.x.x] BYE
sip:2015555555@x.x.x.x:5060 SIP/2.0</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Feb 17 15:02:31 2010 [x.x.x.x] ==> [y.y.y.y]
SIP/2.0 200 OK</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">OUTGOING FROM SBC INTO ASTERISK</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Feb 17 15:01:40 2010 [x.x.x.x] ==> [y.y.y.y]
INVITE sip:2015555555@y.y.y.y:5060;user=phone SIP/2.0</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">
m=audio 21142 RTP/AVP 0 18 8 101 c=IN IP4 x.x.x.x </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">
a=fmtp:18 annexb=no </span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">
a=sendrecv</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Feb 17 15:01:40 2010 [y.y.y.y] ==> [x.x.x.x]
SIP/2.0 100 Trying</span></font></p>
<p class="MsoNormal"><b><font size="3" color="red" face="Calibri"><span style="font-size:12.0pt;font-family:Calibri;color:red;font-weight:bold">Feb 17
15:01:40 2010 [y.y.y.y] ==> [x.x.x.x] SIP/2.0 200 OK</span></font></b></p>
<p class="MsoNormal"><b><font size="3" color="red" face="Calibri"><span style="font-size:12.0pt;font-family:Calibri;color:red;font-weight:bold">
m=audio 19282 RTP/AVP 0 8 c=IN IP4 y.y.y.y </span></font></b></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Feb 17 15:01:40 2010 [x.x.x.x] ==> [y.y.y.y] ACK
sip:2015555555@y.y.y.y SIP/2.0</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Feb 17 15:02:31 2010 [y.y.y.y] ==> [x.x.x.x] BYE
sip:2015555555@x.x.x.x:5060 SIP/2.0</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri">Feb 17 15:02:31 2010 [x.x.x.x] ==> [y.y.y.y]
SIP/2.0 200 OK</span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt;
font-family:Calibri"> </span></font></p>
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