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                            Asterisk Project : Asterisk 13 Application_ChanIsAvail
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            Created by <span class='author'> wikibot</span> on Aug 08, 2014
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                    <h1 id="Asterisk13Application_ChanIsAvail-ChanIsAvail()">ChanIsAvail()</h1>

<h3 id="Asterisk13Application_ChanIsAvail-Synopsis">Synopsis</h3>

<p>Check channel availability</p>

<h3 id="Asterisk13Application_ChanIsAvail-Description">Description</h3>

<p>This application will check to see if any of the specified channels are available.</p>

<p>This application sets the following channel variables:</p>

<ul>
	<li><code>AVAILCHAN</code> - The name of the available channel, if one exists</li>
	<li><code>AVAILORIGCHAN</code> - The canonical channel name that was used to create the channel</li>
	<li><code>AVAILSTATUS</code> - The device state for the device</li>
	<li><code>AVAILCAUSECODE</code> - The cause code returned when requesting the channel</li>
</ul>


<h3 id="Asterisk13Application_ChanIsAvail-Syntax">Syntax</h3>


<div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent">
<pre>ChanIsAvail([Technology2/Resource2[&amp;...]],[options])</pre>
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<h5 id="Asterisk13Application_ChanIsAvail-Arguments">Arguments</h5>

<ul>
	<li><code>Technology/Resource</code> - ** <code>Technology2/Resource2</code> - Optional extra devices to check<br />
If you need more then one enter them as Technology2/Resource2&amp;Technology3/Resourse3&amp;.....<br />
Specification of the device(s) to check. These must be in the format of <code>Technology/Resource</code>, where <em>Technology</em> represents a particular channel driver, and <em>Resource</em> represents a resource available to that particular channel driver.</li>
	<li><code>options</code>
	<ul>
		<li><code>a</code> - Check for all available channels, not only the first one</li>
		<li><code>s</code> - Consider the channel unavailable if the channel is in use at all</li>
		<li><code>t</code> - Simply checks if specified channels exist in the channel list</li>
	</ul>
	</li>
</ul>


<h3 id="Asterisk13Application_ChanIsAvail-SeeAlso">See Also</h3>


<h3 id="Asterisk13Application_ChanIsAvail-ImportVersion">Import Version</h3>

<p>This documentation was imported from Asterisk Version SVN-branch-13-r420538</p>
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                    <p>Document generated by Confluence on Aug 11, 2014 13:44</p>
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