Managing, Ordering, Distributing, Exposing, & Registering telephone Numbers

The information below is for an older proposed charter
Document Proposed charter Managing, Ordering, Distributing, Exposing, & Registering telephone Numbers WG (modern) Snapshot
Title Managing, Ordering, Distributing, Exposing, & Registering telephone Numbers
Last updated 2015-06-22
State IESG Review (Charter for Approval, Selected by Secretariat)
WG State Concluded
IESG Responsible AD Adam Roach
Charter Edit AD Alissa Cooper
Send notices to "Tom McGarry" <>, "Steve Donovan" <>, "Alissa Cooper" <>,


The MODERN working group will define a set of Internet-based mechanisms
for the purposes of managing and resolving telephone numbers (TNs) in an IP
environment. Devices, applications, and network tools increasingly need to
manage TNs, including requesting and acquiring TN delegations from authorities.
The output of the working group should make distribution, acquisition, and
management of TNs simpler for all entities involved.

The working group will define an information management framework for the roles
and functions involved in associating information with one or more TNs in an IP
environment.  The working group will also identify protocol mechanisms to
support the interactions between the functions defined by the framework. This
includes either recommending or defining protocol mechanisms for acquiring,
associating and resolving TNs, with a preference for use of existing protocol
mechanisms. TNs may either be managed in a hierarchical tree, or in a
distributed registry. The protocol mechanism for acquiring TNs will provide an
enrollment process for the entities that use and manage TNs.

The protocol mechanism for resolving TNs will allow entities such as service
providers, devices, and applications to access data related to TNs. Maintaining
reliability, real-time application performance, and security and privacy for
both the data and the protocol interactions are primary considerations. The
working group will take into consideration existing IETF work including STIR,

The work of this group will focus on TNs, as defined in RFC3966, and blocks of
TNs, that are used to initiate communication with another user of a service.
There is an expectation that aspects of the architecture and protocols defined
by the working group will be reusable for other user-focused identifiers. Any
such extensions or reuse of MODERN mechanisms are out of scope for the MODERN
working group. Solutions and mechanisms created by the working group will be
flexible enough to accommodate different policies for TN assignment and
management, for example those established by different regulatory agencies.

The working group will deliver the following:

- An architecture overview, including high level requirements and
security/privacy considerations

- A description of the enrollment processes for existing and new TNs including
any modifications to metadata related to those TNs

- A description of protocol mechanisms for accessing contact information
associated with enrollments

- A description of mechanisms for resolving information related to TNs