<div>Try this:</div><div><br></div>&lt;condition field=&quot;${conference ${destination_number} list count}&quot; expression=&quot;^\d+&quot;&gt;<div><div><br></div><div><br></div><div><br><br><div class="gmail_quote">On Tue, Apr 3, 2012 at 6:33 AM, Avi Marcus <span dir="ltr">&lt;<a href="mailto:avi@avimarcus.net">avi@avimarcus.net</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">A lua script should be able to handle that easier than doing it in the dialplan.<div>But yeah, a regex of an api call to a list sounds like it would work.</div>
<div><br><div>Also - how does the FIRST person get in without this same safety mechanism kicking in?<span class="HOEnZb"><font color="#888888"><br clear="all">

<div dir="ltr"><span style="font-family:Verdana,Arial,Helvetica,sans-serif"><span style="font-size:small">-Avi</span></span></div>
<br><br></font></span><div class="gmail_quote"><div class="im">On Tue, Apr 3, 2012 at 1:49 PM, Stephen Dame <span dir="ltr">&lt;<a href="mailto:sdame@207me.com" target="_blank">sdame@207me.com</a>&gt;</span> wrote:<br></div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">

<div bgcolor="white" background="cid:image001.gif@01CD1165.F1635380" lang="EN-US" link="#999999" vlink="#990000"><img width="0" height="0" style="width:0;min-height:0"><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext">I currently accept any “75xxx” numbers  and transfer to a conference with pin with no problem, however currently if they mistype the number they end up creating a new conference and sit there all by their self waiting.<u></u><u></u></span></p>


<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext"> I want to setup dialpllan entry that only allows a user to join a conference that already exists and is active.<u></u><u></u></span></p>


<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext">Have read thru the wiki, and the 2  FreeSWITCH books looking for examples on how to do this without  creating database tables to store conference state…<u></u><u></u></span></p>


<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext">In reading, looks like I can use ${} and get a “conference list” and with regex patterns might be able to check for existence of valid conference ID before joining them.<u></u><u></u></span></p>


<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext">Does anyone have a simple approach to do this?   <u></u><u></u></span></p>


<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext">Thanks<span><font color="#888888"><u></u><u></u></font></span></span></p>


<span><font color="#888888"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext">Stephen<u></u><u></u></span></p><p class="MsoNormal">
<span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:windowtext"><u></u> <u></u></span></p>
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