|ITU-T Study Group 2 Area of Responsibility (Study Period 1997 - 2000)
Responsible for studies
aspects of service definition related to telecommunication
based, ISDN(s), mobile and UPT services, principles of their
interworking and relevant user quality of service (QoS);
operations including routing, numbering, network management
and service quality of networks (traffic engineering, operational
performance and service measurements);
and operational aspects of fraud prevention.
Study Group on Service definition, Numbering, Routing and Global Mobility
Group 2 is the Lead Study Group for service definition (including all
types of services) for numbering and routing and for global
Study Group 2 has a coordination role in studies on billing
(Phase one) and operational quality of service/network
Group 2 shall define and describe services including FPLMTS in
its area of responsibility from a user's point of view to
interconnection and interoperation and also ensure compatibility
International Telecommunication Regulation and related
intergovernmental agreements. It should also recommend QOS for
service and interact with other Study Groups (e.g. SG 13) in this
its area of responsibility Study Group 2 should define services
functionally on an end-to-end basis, deal with supplementary
services facilitating access to basic services and with services
supported by networks or by other services, such as telephone.
Group 2 should continue to study service policy aspects including
those that may arise in the operation and provision of transborder, global
and/or regional services, including those that offer both
content components, taking due account of national sovereignty.
document communication, directory and audiovisual/multimedia
services are studied, except in the mobile environment, by other Study
Groups (SG 7, SG 8, SG16) being responsible for
However, harmonization of service interworking and service operation
aspects is required.
Group 2 is responsible for studying, developing and
recommending general principles of numbering and routing for all
Chairman of Study Group 2 (or, if needed the Chairman's delegated
representative) should provide technical advice to the Director
TSB concerning general principles for numbering and routing and
effect on allocation of international codes.
Group 2 should provide the Director of the TSB with advice on
technical, functional and operational aspects in the assignment,
reassignment and/or reclamation of international numbering and
addressing resources in accordance with the relevant E- and F-Series
Recommendations taking into account the results of any ongoing
Group 2 recommend traffic engineering planning and dimensioning
guidance for the implementation and operation of all types of
and network elements.
Group 2 recommend measures to be taken to assure operational
performance of all networks (including network management) in
meet the in-service network performance and QOS.
Study Group 2 identifies operating functions which need the support of
network capabilities, these functions should be defined and
on the basis of the description method and network architectural
principles as defined by SG13.