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 website 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 ?
The successful testing of ENUM on Telekom Austria's next generation environment demonstrates yet again that the infrastructure is ready for commercial customer pilots.
But there is still disagreement over how the ENUM registries contracting with this LLC would be required to operate.
Proponents say ENUM will simplify communications because one point of contact could be routed to a telephone, e-mail inbox, or fax machine, depending on the application.
In keeping with the need to allow for voluntary implementation of the scheme and recognizing that ENUM services are primarily national issues, rapid progress at the international level is necessary to create a stable environment in which investment can be made in the worldwide deployment of ENUM.
ENUM registries are at the heart of XConnect's peering and federation infrastructure, routing voice and multimedia calls and advanced services between communications service providers in a scalable and highly optimised manner.
tel domain and the associated brand will be a great way to accelerate adoption of ENUM and VoIP.
XConnect has lead industry consolidation via the acquisition of the European carrier ENUM exchange e164.
Our recent release of ENUM support on the IMG 1010, along with XConnect's peer service, will give carrier customers reduced operating expenses, faster connection times and improved call quality.
The ENUM and Peering Summit on June 11th will include the following sessions:
XConnect's industry leading VoIP Peering and ENUM solutions have been adopted by over 400 service providers in 35 countries representing millions of VoIP enabled subscribers.
Net-Net Session Border Controllers Provide O1 with Advanced Security, ENUM and Service Control Features, Enabling Delivery of Customized IP Services
DirectRoute enables wholesale carriers to terminate calls destined for XConnect ENUM Registry numbers directly to the terminating Service Providers' networks, lowering per minute costs and improving quality by eliminating unnecessary transit operators and associated PSTN/VoIP gateways.