ITU-T - International Telecommunication Union/ITU Telcommunication Sector
Latest
ITU-T Y.2201-2007
Scope
This Recommendation specifies high-level requirements for the development of a set of ITU-T Recommendations which will constitute NGN release 1. The high-level requirements and related capabilities specified in this Recommendation are aligned with the general goals and objectives captured in [ITU-T Y.2001] and are based on the objectives of NGN release 1 identified in [b-ITU-T Y-Sup.1]. NGN is required to provide at least one level of service that offers capabilities that are the same or better than those provided by circuit-switched networks. More detailed requirements and service-specific requirements are outside the scope of this Recommendation. While requirements on user equipment are outside the scope of this Recommendation@ requirements associated with access arrangements are within the scope. It is recognized that a specific realization of NGN may be constituted by a set (or superset) of services supported in NGN release 1 and of capabilities as specified in this Recommendation. Administrations may require providers to take into account national regulatory and national policy requirements in implementing this Recommendation.