title: Office Communicator 2007: Open conversation window via link in tab
body: <p>I've integrated a web app inside the Communicator client as a "context-sensitive custom tab".</p>
  
  <p>Our app needs to be able to open a conversation window with a given user via a click on a link in the web page. With Communicator 2005 we could just use an <code>&lt;a&gt;</code> tag with the SIP URI of the user:</p>
  
  <pre><code>&lt;a href="sip:user@ourcompany.com"&gt;User&lt;/a&gt;
  </code></pre>
  
  <p>With Communicator these links no longer work inside our tab. However, if I load up the web page in Internet Explorer, the links work.</p>
  
  <p>Any idea what I need to do to get them working in the tab for Communicator 2007?</p>