Is there an open source live support application
<p>I have 5-10 support reps who use Google Apps including Google Talk and Skype application</p>

<p>I want to provide a "Live Support" option on my web site.</p>

<p>When one or more employees log in to Google Apps the live support option should become available.</p>

<p>Ideally the live support feature should simply enable a 1:1 chat session with a support rep with the ability to add additional support reps.</p>

<p>and especially this open source provides API support for mobile devices such as android, iphone ...it can be written in PHP, Java...</p>
