<div dir="ltr">In the short-duration/dialer market, you would be surprised at the proportion of answered calls that were disconnected by the originating party, not the terminating party. Often these are working-number or fax machine probes, or failed "direct to voicemail" call forks, or Wangiri/ring once schemes. The originating service providers, or their clients, often use a 7-second hold (or higher) to mask this behavior downstream. It keeps the ALOC above the underlying carriers' traffic profile requirements and makes the Short Call Percentage zero (ratio of connected calls less than 6 seconds).<div><br></div><div>Editorial: If you or your clients require this kind of tricky billing, it might be time to reconsider the legitimacy of the business case.<br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><span><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:10pt;font-family:"Proxima Nova",sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:800;vertical-align:baseline;white-space:pre-wrap"><br></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:10pt;font-family:"Proxima Nova",sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:800;vertical-align:baseline;white-space:pre-wrap"><br></span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:10pt;font-family:"Proxima Nova",sans-serif;color:rgb(0,0,0);background-color:transparent;font-weight:800;vertical-align:baseline;white-space:pre-wrap">Calvin Ellison</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:10pt;font-family:"Proxima Nova",sans-serif;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Systems Architect</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:10pt;font-family:"Proxima Nova",sans-serif;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><a href="mailto:calvin.ellison@voxox.com" target="_blank">calvin.ellison@voxox.com</a></span></p><p 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privileged information or work product intended only for the individual or entity to whom it is addressed. Any unauthorized use, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify me immediately.</span></p></span></div></div></div></div></div></div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jun 28, 2021 at 7:56 AM Alex Balashov <<a href="mailto:abalashov@evaristesys.com">abalashov@evaristesys.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">This is precisely due to the proportion of short-duration calls. But I agree that it is a very stupid way to approach the problem, particularly when you consider where most of the hangups in short duration calls actually come from.<div><br></div><div>Some of them do you come from the originator, in the case of AMD. </div><div><br></div><div>But many come from the PSTN callee - “oh, great, it’s another one of these OpenSIPS dialer people calling about an extended car warranty. *click*”</div><div><br></div><div>That would cause the termination switch to have already processed the BYE, regardless of whether you delay your response to it.<br><br><div dir="ltr">—<div>Sent from mobile, with due apologies for brevity and errors.</div></div><div dir="ltr"><br><blockquote type="cite">On Jun 28, 2021, at 9:23 AM, Jeff Pyle <<a href="mailto:jeff@ugnd.org" target="_blank">jeff@ugnd.org</a>> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr"><div>Eek. This sounds like a recipe for future problems with this carrier. If you really want to try, you could do a sleep() or usleep() on BYE requests in the section of your script that processes sequential requests....the has_totag() and loose_route() part (assuming no topology_hiding). That's going to occupy the process, though, so you might want to look at doing it async-style if scale is a concern. If you want to do it only on BYE requests to the carrier rather than on BYE requests in both directions, then you'll have to detect the direction, which is possible but gets more involved.</div><div><br></div><div>I know I'm going to regret asking this, but why does your carrier want you to delay your BYE messages? <br></div><div><br></div><div><br></div><div>- Jeff</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Jun 27, 2021 at 5:07 PM Alexander Perkins <<a href="mailto:alexanderhenryperkins@gmail.com" target="_blank">alexanderhenryperkins@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi All. Our carrier has asked us if we can do a 'delayed bye'. I have no idea what this means. The way it was explained to me is - the b-let is held for x numbers of seconds after the a leg hangs up.<div><br></div><div>Does that make sense? If so, can someone point me in the right direction?</div><div><br></div><div>Thank you, </div><div>Alex</div></div>
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