<p>The 183 with sdp is signaling to start media as Wes suggested. It appears I have two choices. Disable early media in the cube or in the sip profile on CUCM.</p>
<div class="gmail_quote">On Mar 28, 2013 8:20 PM, "Jason Aarons (AM)" <<a href="mailto:jason.aarons@dimensiondata.com">jason.aarons@dimensiondata.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I recall the 183 means a inband message, usually a disconnected number, etc. I could be wrong. Been awhile. It was a outbound dialer on a contact center that was sip.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><div><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""> <a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a> [mailto:<a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a>] <b>On Behalf Of </b>Erick Wellnitz<br>
<b>Sent:</b> Thursday, March 28, 2013 3:59 PM<br><b>To:</b> Wes Sisk<br><b>Cc:</b> cisco-voip<br><b>Subject:</b> Re: [cisco-voip] SCCP StopTone sent before call answered<u></u><u></u></span></p></div></div><p class="MsoNormal">
<u></u> <u></u></p><p class="MsoNormal" style="margin-bottom:12.0pt"><br><br>I noticed that calls with ringback do not have a SIP 183 message. Would I be able to filter the messages or will that cause more problems?<u></u><u></u></p>
<div><p class="MsoNormal">On Thu, Mar 28, 2013 at 12:48 PM, Wes Sisk <<a href="mailto:wsisk@cisco.com" target="_blank">wsisk@cisco.com</a>> wrote:<u></u><u></u></p><p class="MsoNormal" style="margin-bottom:12.0pt">Most likely something in the progress indicates to cut through audio so we stop tone on the phone and try to nail up in band audio…<br>
<br>-wes<br><br>On Mar 28, 2013, at 1:14 PM, Erick Wellnitz <<a href="mailto:ewellnitzvoip@gmail.com" target="_blank">ewellnitzvoip@gmail.com</a>> wrote:<br><br>Thanks in advance for any ideas.<br><br>I have a rather strange issue with ringback.<br>
<br>CUCM 8.0.3.20000-2<br>IOS 12.4(24)T4<br><br>I have a SIP trunk configured to my CUBE with several paterns pointing to the trunk. This CUBE points to another CUBE in the UK. We route calls from the US to the UK PSTN over the SIP trunk to the UK. The calls connect and I hear the remote party fine but there is silence until the remote end answers.<br>
<br>I see in the traces that we receive the 180 Ringing message over the trunk. I also see the SCCP StartTone message is sent to the phone. When we get the SIP 183 Session Progress message I immediately see a SCCP StopTone message. I also see the SCCP StopTone message when the remote party answers. Has anyone seen anything like this before?<br>
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</div><p class="MsoNormal"><br><br><br><span style="color:white">itevomcid</span> <u></u><u></u></p></div></div></blockquote></div>