hits is what controls how &quot;long&quot; the tone needs to be present for the detection to be considered positive. The higher the number of hits, the longer the duration of the tone needs to be to form a positive detect. I would experiment with the hits value and see what you can learn.<br>
<br>-MC<br><br><div class="gmail_quote">On Sat, Mar 17, 2012 at 11:58 AM, Bing LI <span dir="ltr">&lt;<a href="mailto:enst.bupt@gmail.com">enst.bupt@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br><div><br></div><div>I just found that tone_detect worked sometimes and sometimes it didn&#39;t work. For a short length of tone like 100ms, it worked well. But for a much longer one (700ms or 1sec without pause), it didn&#39;t work. This one has not been detected but in the recording file, it was obvious. </div>


<div><br></div><div>by this wiki <a href="http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_tone_detect" target="_blank">http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_tone_detect</a><br></div><div>I don&#39;t know how exactly the <b><i>hits</i></b> works. </div>


<div><br></div><div>And later I found these 2 variables called <b><i>tone_detect_sleep</i></b> and <i style="font-weight:bold">tone_detect_expires. </i>But I didn&#39;t find any explanations about them.</div><div>Can anybody bring more details?</div>


<div>  <br></div><div><br></div><div>Thanks.</div><div><br></div><div><br></div>
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