Add i4b project idea.

Submitted by:	bz

en/projects/ideas/ideas.xml

@@ -15,7 +15,7 @@ Ideas//EN"
 <ideas>
   <cvs:keywords xmlns:cvs="http://www.FreeBSD.org/XML/CVS" version="1.0">
     <cvs:keyword name="freebsd">
-      $FreeBSD: www/en/projects/ideas/ideas.xml,v 1.69 2008/03/20 18:52:13 rwatson Exp $
+      $FreeBSD: www/en/projects/ideas/ideas.xml,v 1.70 2008/03/21 20:18:13 rwatson Exp $
     </cvs:keyword>
   </cvs:keywords>
 
@@ -1186,6 +1186,42 @@ destDir parameter.</li>
         </desc>
       </idea>
 
+      <idea id="isdn" class="soc">
+	<title>ISDN subsytem (I4B) overhaul</title>
+
+	<desc>
+
+	<p><strong>Technical contact</strong>:<a
+	  href="mailto:bz@FreeBSD.org">Bjoern A. Zeeb</a></p>
+
+	<p>ISDN4BSD (I4B) is the ISDN subsytem within the FreeBSD source
+	  tree.  Due to the fact that parts were still running under the
+	  Giant lock, I4B was disabled for FreeBSD 7.0 and needs locking to
+	  become MPSAFE.  In addition to that some of the code should be
+	  overhauled to match the current expectations of a FreeBSD device
+	  driver.  Ideally things will work on 64bit platforms afterwards
+	  and be endian safe.<br/>  Once this is done a next step would be
+	  to evaluate integration of missing device drivers and CAPI4BSD
+	  (C4B) into the tree.</p>
+
+	<p><strong>Notes:</strong></p>
+	<ul>
+	  <li>We do not want a rewrite from scratch or another
+	    implementation.</li>
+	  <li>In case you are interested as a Google Summer of Code student:
+	    you are not expected to finish the entire task but you will be
+	    welcome to stay with the project once GSoC is over.</li>
+	</ul>
+
+	<p><strong>Requirements</strong>:</p>
+	<ul>
+	  <li>ISDN line/PBX and ISDN card supported by I4B for testing.</li>
+	  <li>Ability to read and understand foreign C code.</li>
+	  <li>Ability to write C code.</li>
+	  <li>A good understanding of FreeBSD device drivers and locking.</li>
+	</ul>
+	</desc>
+      </idea>
   </category>
 
   <category>