"As the world's telecom networks move away from the plain old telephone service model to VoIP, the need for a new form of directory and interconnection is becoming increasingly apparent. Some believe the next generation directory to be ENUM, others such as open-source revolutionary Mark Spencer see the future to be a tool called DUNDi.
"DUNDi is an acronym for Distributed Universal Number Discovery and is by definition a 'a peer-to-peer system for locating Internet gateways to telephony services. DUNDi is fully distributed, with no centralized authority whatsoever...'"