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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Busy()</title><link rel="stylesheet" href="styles.css" type="text/css" /><meta name="generator" content="DocBook XSL Stylesheets V1.69.1" /><link rel="start" href="index.html" title="Asterisk™: The Future of Telephony" /><link rel="up" href="asterisk-APP-B.html" title="Appendix B. Application Reference" /><link rel="prev" href="asterisk-APP-B-25.html" title="BackgroundDetect()" /><link rel="next" href="asterisk-APP-B-31.html" title="ChangeMonitor()" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Busy()</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="asterisk-APP-B-25.html">Prev</a> </td><th width="60%" align="center">Appendix B. Application Reference</th><td width="20%" align="right"> <a accesskey="n" href="asterisk-APP-B-31.html">Next</a></td></tr></table><hr /></div><div class="refentry" lang="en" xml:lang="en"><a id="asterisk-APP-B-27"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>Busy() — Indicates a busy condition to the channel</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><a id="I_programlisting_tt2128"></a><pre class="programlisting">Busy([<em class="replaceable"><code>timeout</code></em>])</pre></div><div class="refsect1" lang="en" xml:lang="en"><a id="id4178260"></a><h2></h2><p><a id="I_indexterm_tt2129" class="indexterm"></a>Requests that the channel indicate the busy condition and
then waits for the user to hang up or for the optional
<em class="replaceable"><code>timeout</code></em> (in seconds) to expire.</p><p>This application signals a busy condition only to the bridged
channel. Each particular channel type has its own way of communicating
the busy condition to the caller. You can use <code class="literal">Playtones(busy)</code> to play a busy tone to the
caller.</p><a id="I_programlisting_tt2130"></a><pre class="programlisting">exten => 123,1,Playback(im-sorry)
exten => 123,2,Playtones(busy)
<span class="strong"><strong>exten => 123,3,Busy()</strong></span>
</pre></div><div class="refsect1" lang="en" xml:lang="en"><a id="asterisk-APP-B-28"></a><h2>See Also</h2><p><a href="asterisk-APP-B-36.html" title="Congestion()"><span class="refentrytitle">Congestion()</span></a>, <a href="asterisk-APP-B-142.html" title="Progress()"><span class="refentrytitle">Progress()</span></a>, <a href="asterisk-APP-B-136.html" title="Playtones()"><span class="refentrytitle">Playtones()</span></a>,
<a href="asterisk-APP-B-93.html" title="Hangup()"><span class="refentrytitle">Hangup()</span></a></p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="asterisk-APP-B-25.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="asterisk-APP-B.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="asterisk-APP-B-31.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">BackgroundDetect() </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> ChangeMonitor()</td></tr></table></div><div xmlns="" id="svn-footer"><hr /><p>You are reading <em>Asterisk: The Future of Telephony</em> (2nd Edition for Asterisk 1.4), by Jim van Meggelen, Jared Smith, and Leif Madsen.<br />
This work is licensed under the <a href="http://creativecommons.org/licenses/by-nc-nd/3.0/">Creative Commons Attribution-Noncommercial-No Derivative Works License v3.0</a>.<br />
To submit comments, corrections, or other contributions to the text, please visit <a href="http://oreilly.com/catalog/9780596510480/">http://www.oreilly.com/</a>.</p></div></body></html>
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