ENUM


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ENUM

(Electronic NUMbering) A protocol from the IETF for converting a telephone number to an IP address and vice versa so that it can be resolved by the Internet's DNS system like traditional Web site domains. Primarily designed to strengthen voice over IP (VoIP) service, ENUM is expected to provide a one-stop directory for contacting people and services and to integrate the public telephone network (PSTN) with the Internet. See DNS, VoIP and VPIM.

The E164 ARPA Domain
ENUM transforms a phone, fax or pager number into a dotted Internet address that is stored in the DNS system. For example, the fully qualified telephone number 1-215-555-1234 would turn into 4.3.2.1.5.5.5.5.1.2.1.e164.arpa. The digits are reversed because DNS reads right to left (the top-level domain such as .com in a URL is read first).

Typing in a telephone number would resolve into a URL where the target could be a traditional phone, a VoIP phone or a Web service. ENUM records can hold attributes about a device such as whether it can receive a text message or is Internet capable. See E.164, RDF and XDI.
References in periodicals archive ?
XConnect enables service providers to simplify the interconnect process and enable the deployment of revenue-generating, IP-based multimedia services across networks by more efficiently routing calls to their subscribers via ENUM registry queries.
Bharti Airtel's participation in the carrier ENUM pilot programme paves the way for leveraging Carrier ENUM to create a collaborative ecosystem to route voice and data freely amongst operators.
ENUM maps phone numbers into domain names by reversing the order of the digits and putting dots between them .
Information on how the ENUM requests will be processed can be found at www.
A frequent speaker on ENUM, SIP, NGN and related topics, Shockey also has written numerous articles on NGN technologies.
However, BIND and other DNS server solutions were never designed to support carrier- grade ENUM requirements and all fail at loading large numbers of ENUM DNS resource records.
Instra is a global provider of Domain Names and the first company in the world to offer a practical application for ENUM technology.
An ENUM is registered in a similar way to traditional domains names, however, unlike domain names only the actual owner of a particular phone number can register the ENUM for that number.
164 phone number into a DNS-enabled ENUM, you reverse the order of the digits, put dots between them, and add ".
The VeriSign ENUM Data Access service helps AOL deliver messages more efficiently and economically through the convergence of IP and traditional telephone networks, enabling direct access to service provider data through an ENUM query.
ENUM assigns an Internet address to an individual as a single point of communications and allows landline, mobile calls, e-mail and instant messages to be exchanged using one IP number.