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                            Asterisk Project : Asterisk 13 Function_DEVICE_STATE
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            Created by <span class='author'> wikibot</span> on Aug 08, 2014
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                    <h1 id="Asterisk13Function_DEVICE_STATE-DEVICE_STATE()">DEVICE_STATE()</h1>

<h3 id="Asterisk13Function_DEVICE_STATE-Synopsis">Synopsis</h3>

<p>Get or Set a device state.</p>

<h3 id="Asterisk13Function_DEVICE_STATE-Description">Description</h3>

<p>The DEVICE_STATE function can be used to retrieve the device state from any device state provider. For example:</p>

<p>NoOp(SIP/mypeer has state ${DEVICE_STATE(SIP/mypeer)})</p>

<p>NoOp(Conference number 1234 has state ${DEVICE_STATE(MeetMe:1234)})</p>

<p>The DEVICE_STATE function can also be used to set custom device state from the dialplan. The <code>Custom:</code> prefix must be used. For example:</p>

<p>Set(DEVICE_STATE(Custom:lamp1)=BUSY)</p>

<p>Set(DEVICE_STATE(Custom:lamp2)=NOT_INUSE)</p>

<p>You can subscribe to the status of a custom device state using a hint in the dialplan:</p>

<p>exten =&gt; 1234,hint,Custom:lamp1</p>

<p>The possible values for both uses of this function are:</p>

<p>UNKNOWN | NOT_INUSE | INUSE | BUSY | INVALID | UNAVAILABLE | RINGING | RINGINUSE | ONHOLD</p>


<h3 id="Asterisk13Function_DEVICE_STATE-Syntax">Syntax</h3>


<div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent">
<pre>DEVICE_STATE(device)</pre>
</div></div>

<h5 id="Asterisk13Function_DEVICE_STATE-Arguments">Arguments</h5>

<ul>
	<li><code>device</code></li>
</ul>


<h3 id="Asterisk13Function_DEVICE_STATE-SeeAlso">See Also</h3>


<h3 id="Asterisk13Function_DEVICE_STATE-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 13:46</p>
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