<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">2014-02-04 Richard Mudgett <span dir="ltr"><<a href="mailto:rmudgett@digium.com" target="_blank">rmudgett@digium.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><br><div class="gmail_extra"><div><div class="h5"><br><br><div class="gmail_quote">On Tue, Feb 4, 2014 at 10:56 AM, Olivier <span dir="ltr"><<a href="mailto:oza.4h07@gmail.com" target="_blank">oza.4h07@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div>Hello,<br><br></div>On a Asterisk 1.6.1 powered system, I've just discovered that using Busy() application in dialplan was no enough to send a Busy signal on incoming Dahdi channel.<br>
<br></div>On this specific install, adding an Answer()) and a Playtone() statement in dialplan triggered sending of busy tone but I'm still surprised by my findings.<br><br></div>Should I expect public switch to send a Busy tone to caller whenever Asterisk triggers Busy app or did I miss something ?<br>
</div></div></blockquote><div><br></div></div></div></div>It depends upon what kind of DAHDI channel. If it is an analog FXS/FXO port then<br>you have to answer for the busy tone to be heard by the caller because as far as the<br>
telco is concerned it delivered a call to a non-busy line.</div></div></blockquote><div><br></div><div>That makes sense.<br><br></div><div>Then I'm wondering if playing a Busy tone is enough to let Caller's telco or device ask for automatic redial.<br>
</div><div>I think this feature is only available ISDN or equivalent networks.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr"><div class="gmail_extra"> If it is an ISDN<br>
channel then it depends upon what you have the priindication option set to. With<br>priindication=outofband then a busy cause code is sent to the network and the call<br>is hung up. With priindication=inband then a busy tone is sent after a possible<br>
PROGRESS message.<span class="HOEnZb"><font color="#888888"><br></font></span></div></div></blockquote><div><br></div><div>Thank you very much for sharing this.<br></div><div>I'm gonna check what's really happening from caller's perspective when such parameter is set.<br>
</div><div>I would expect a busy tone (and the opportunity for automatic redialing).<br></div><div><br><br></div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr"><div class="gmail_extra"><span class="HOEnZb"><font color="#888888"></font></span></div><span class="HOEnZb"><font color="#888888"><div class="gmail_extra"><br></div><div class="gmail_extra">Richard<br></div>
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