<div><div dir="auto">That is wrong. If they want the clients device to generate ringing to the client then they should be sending 180. Once 183 is sent we expect audio in band. Please inform your carrier to fix their problem. A simple google would explain clearly. </div></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, 6 Sep 2019 at 21:17, Sean Peters <<a href="mailto:scpeters@techsquared.com">scpeters@techsquared.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">I’m currently running CE 6.5 and have a coupe outbound dialed routes where the user does not hear a ring but the call progresses. Here is what the vendor is saying.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Lucida Sans Unicode",sans-serif;color:#2b2e2f">If you look at the signaling on this call Windstream sent back an initial ringback (183) right after they received the INVITE. This initial 183 included
SDP/Media which signifies that they would have been playing the ringback. However 1 second later (see attachment) they sent a 183 without SDP/Media which puts the responsibility of ringback on the source switch, in other words your network.<br>
<br>
This type of signaling is very common and the initial 183 SDP is referred to as early ringback. It is acceptable and is not something we would open a case with a downstream vendor on.
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</span><u></u><u></u></p>
<p class="MsoNormal">So what changes do I need to make so when Sipwise receives a 183 without SDP, SIPwise generates the ring tone my customer?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thanks for any direction.</p></div></div><div lang="EN-US" link="#0563C1" vlink="#954F72"><div class="m_8133509416476084576WordSection1"><p class="MsoNormal"><u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Sean<u></u><u></u></p>
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