ENUM domains look complex and not particularly user-friendly, but end users will likely never see one.
ENUM could be used to address fax machines, pagers, modems, email clients, and text terminals for the hearing impaired, according to the IETF.
Virginia-based NeuStar Inc manages +1 under the North American Numbering Plan, and intends to bid to run the ENUM equivalent when the opportunity arises, according to NeuStar VP of strategic technology initiatives Tom McGarry.
MERA Systems' next generation MVTS II (MERA VoIP Transit Softswitch II) will reportedly support sophisticated routing capabilities, including various options for a carrier to send requests to ENUM
registries, analyze the responses and use information received to take optimal routing decisions for each call, based on cost, quality, Inter/Intrastate routing options, route capacity, gateway and route load, and other parameters.
"We're trying to provide legs for ENUM," said Pulver.com CEO Jeff Pulver.
Pulver said that a .tel domain and the associated brand will be a great way to accelerate adoption of ENUM and VoIP.
In late 2000, it was decided that to turn a E.164 phone number into a DNS-enabled ENUM, you reverse the order of the digits, put dots between them, and add ".e164.arpa" to the end.
will make it possible to call a PC from the public-switched telecommunication network (PSTN) and to easily determine what type of terminal is associated with the number.