Add DUNDi.... (http://www.dundi.com)

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doc/README.dundi

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+Distributed Universal Number Directory (DUNDi) (tm)
+===================================================
+http://www.dundi.com
+Mark Spencer, Digium, Inc.
+
+DUNDi is essentially a trusted, peer-to-peer system for being able to
+call any phone number from the Internet.  DUNDi works by creating a
+network of nodes called the "DUNDi E.164 Trust Group" which are bound by
+a common peering agreement known as the General Peering Agreement or
+GPA.  The GPA legally binds the members of the Trust Group to provide
+good-faith accurate information to the other nodes on the network, and
+provides standards by which the community can insure the integrity of
+the information on the nodes themselves.  Unlike ENUM or similar
+systems, DUNDi is explicitly designed to preclude any necessity for a
+single centralized system which could be a source of fees, regulation,
+etc.
+
+You can find the PEERING agreement in the doc directory.
+
+Much less dramatically, DUNDi can also be used within a private
+enterprise to share a dialplan efficiently between multiple nodes,
+without incuring a risk of a single point of failure.  In this way,
+administrators can locally add extensions which become immediately
+available to the other nodes in the system.
+
+For more information visit http://www.dundi.com