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<p class="MsoNormal"><span style="color:#44546A">Hi Matt,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A">From rfc5806<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A"> The Redirection Counter value minus 1 SHOULD be stored in the<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A"> diversion- counter associated with the top-most Diversion header.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A"> Presence of the diversion-counter for the bottom-most Diversion<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A"> header is optional. If present, the diversion-counter of the bottom-<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A"> most Diversion header SHOULD be 1.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A">If it’s the bottom diversion header then anything not with 1 is going to have problems.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A">Why are you setting the counter to 99?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#44546A"><o:p> </o:p></span></p>
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<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""> VoiceOps [mailto:voiceops-bounces@voiceops.org]
<b>On Behalf Of </b>Matthew Yaklin<br>
<b>Sent:</b> Wednesday, February 03, 2021 3:01 PM<br>
<b>To:</b> voiceops@voiceops.org<br>
<b>Subject:</b> [VoiceOps] Diversion header with counter=99<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Has anyone ran into an issue where the diversion parameter “counter” is causing some calls to fail to an error message?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Diversion: <sip:+1585xxxxxxx@10.x.x.40:5060>;reason=unknown;counter=99
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Basically we have a customer who forwards a call to their ATT cell. ATT plays an error message yet the customer’s setup will pull the call back to our switch’s voicemail after 30 seconds. This actually works if you let the error message
play long enough. This setup works everywhere else like Verizon for example with no error message played. It rings as expected.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Our invite goes out with two diversion headers and the top one simply duplicates the bottom but with the counter param added.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I guess Level3 used to have this issue as well in the past? Because I found a Meta doc talking about this exact problem.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any advice is welcome. Thanks,<o:p></o:p></p>
<p class="MsoNormal"><br>
Matt<o:p></o:p></p>
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