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A C D E F G H I M N O P R S T U V W X
ED EN

ENUM

Electronic Numbering, E164 NUmber Mapping
A suite of protocols to unify the telephone system with the Internet by using E.164 addresses with DDDS and DNS. ENUM is not required to facilitate (although it does help facilitate) VoIP and should not be confused with common VoIP routing based on SIP and H.323 protocols with a URI. VoIP Service Providers assign a URI to a customer in order to complete calls over the internet. ENUM is a DNS-based protocol that is best suited to offer services that not only help facilitate, but expand on ways to complete calls over VoIP networks as described below. It provides a user with a domain name on an E.164 server in order to associate a common international telephone number with a URI and provide other DNS-related services. The server is maintained by the Service Provider and is expected to become standard since it can successfully address locating URIs with nothing more than a common international telephone number.
See also: SIP, VOIP

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