<div dir="ltr">what does <span style="font-size:14px">callflow means，</span><span style="color:rgb(67,67,67);font-family:Arial,sans-serif;font-size:14px;line-height:24px">Where can I learn？</span></div><div class="gmail_extra"><br><div class="gmail_quote">2015-12-25 1:27 GMT+08:00 Michael Jerris <span dir="ltr"><<a href="mailto:mike@jerris.com" target="_blank">mike@jerris.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">those two events should not be assumed to be in a specific order, that is correct, they can come in either order. A channel could be parked before or after we see progress. In some cases you might even see an answer without progress I think. This depends on what we get from the remote endpoint and when. You may be able to force things in dial plan to wait for progress depending on how your dial plan is structured and how you are executing things, but would need a better understanding of callflow to say any more<div class="HOEnZb"><div class="h5"><span></span><br><br>On Wednesday, December 23, 2015, 张顺通 <<a href="mailto:shuntongzhang@gmail.com" target="_blank">shuntongzhang@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">sorry，park is ahead.<div><br></div><div><span style="font-size:14px">2015-12-24 09:40:28.238697 </span><span style="font-size:14px">CHANNEL_PARK </span><a href="tel:3043677952" value="+13043677952" style="font-size:14px" target="_blank">3043677952</a><br></div><div><span style="font-size:14px">2015-12-24 09:40:28.238697 CHANNEL_PROGRESS </span><a href="tel:3042203392" value="+13042203392" style="font-size:14px" target="_blank">3042203392</a><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-12-24 10:28 GMT+08:00 张顺通 <span dir="ltr"><<a>shuntongzhang@gmail.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"><span style="color:rgb(67,67,67);font-family:Arial,sans-serif;font-size:14px;line-height:24px">I met a problem</span><br><div><span style="color:rgb(67,67,67);font-family:Arial,sans-serif;font-size:14px;line-height:24px">when I register PROCESS and PARK event use </span><font color="#434343" face="Arial, sans-serif"><span style="font-size:14px;line-height:24px">switch_event_bind_removable.</span></font></div><div>In my view,In normal sequence，<span style="color:rgb(67,67,67);font-family:Arial,sans-serif;font-size:14px;line-height:24px">PROCESS call back first and </span><span style="color:rgb(67,67,67);font-family:Arial,sans-serif;font-size:14px;line-height:24px">PARK callback second.</span></div><div><span style="color:rgb(67,67,67);font-family:Arial,sans-serif;font-size:14px;line-height:24px">But sometims PARK is callback first and </span><span style="color:rgb(67,67,67);font-family:Arial,sans-serif;font-size:14px;line-height:24px">PROCESS callback second. And in different thread.</span></div><div><span style="color:rgb(67,67,67);font-family:Arial,sans-serif;font-size:14px;line-height:24px"><br></span></div><div><span style="color:rgb(67,67,67);font-family:Arial,sans-serif;font-size:14px;line-height:24px">The out-of-order problem </span><font color="#434343" face="Arial, sans-serif"><span style="font-size:14px;line-height:24px">Bothers me.</span></font></div><div><font color="#434343" face="Arial, sans-serif"><span style="font-size:14px;line-height:24px"><br></span></font></div><div><font color="#434343" face="Arial, sans-serif"><span style="font-size:14px;line-height:24px">my dialplan:</span></font></div><div><font color="#434343" face="Arial, sans-serif"><span style="font-size:14px;line-height:24px"><div><action application="ring_ready" /></div><div><action application="park" /></div></span></font></div><div><br></div><div>event time is same,but out of order and in different</div><div>last number is thread number</div><div>2015-12-24 09:40:28.238697 CHANNEL_PROGRESS <a href="tel:3042203392" value="+13042203392" target="_blank">3042203392</a><br></div>
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<p><span>2015-12-24 09:40:28.238697 </span>CHANNEL_PARK <a href="tel:3043677952" value="+13043677952" target="_blank">3043677952</a></p>
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