<pre><code>ORTC.announcementSubchannel = 'announcementSubchannel';
</code></pre>
<h4>sessionId (readonly)</h4>
<p>The client session identifier</p>
<p>Example:</p>
<pre><code>alert(ORTC.sessionId);
</code></pre>
<h3>Events</h3>
<h4>onException</h4>
<p>Event fired whenever exception occurs.
The event parameter passed on the callback function has defined following property:
- <strong>info</strong> [string]: description of the exception</p>
<p>Example:</p>
<pre><code>ORTC.addEventListener('onException', functi