ITU‑T Study Group 2: Operational aspects of telecommunications and ICTs
(Study Period 2025 - 2028)
ITU-T Study Group 2 is responsible for studies relating to operational aspects of
telecommunications and ICTs, which include studies related to procedures, actions or processes to
manage telecommunication/ICT services and networks. This comprehensive endeavour, which
considers ongoing coordination within ITU-T and other standards-development organizations
(SDOs), encompasses the following aspects:
- international telecommunication/ICT numbering, naming, addressing, and identification
(NNAI) resources;
- the deployment of NNAI requirements, along with resource allocation and management,
incorporating criteria and procedures for reservation, assignment and reclamation;
additionally, there is a focus on the evolution and specification of NNAI requirements and
resource assignment for future telecommunication/ICT architectures, capabilities,
applications and services;
- the principles governing the administration of international NNAI resources;
- the principles of service provision, definition and operational requirements for both current
and future telecommunication/ICT architectures, capabilities, applications and services;
- the operational impact of factors such as the Internet, convergence (services or
infrastructure), quality of service (QoS), and emerging services, such as over-the-top
(OTT), on international telecommunication services and networksthe operational impact of factors such as the Internet, convergence (services or
infrastructure), quality of service (QoS), and emerging services, such as over-the-top
(OTT), on international telecommunication services and networks;
- both operational and managerial dimensions of networks, such as network traffic
management, designations, and transport-related operational procedures; the systematic
evaluation of feedback from operators, manufacturing entities, and users, spanning various
facets of network operation; the management of forthcoming telecommunication/ICT
architectures, capabilities, applications, and services; and the evolution of the management
interface specification methodology and the specification of interfaces for management
systems, which are crucial for supporting the communication of identity information within
or between organizational domains;
- interworking, by developing the scope, principles, and operational facets of routing,
interworking, number portability, billing, and carrier switching; the operational aspects of
interworking between conventional telecommunication networks and continually evolving
telecommunication/ICT architectures, capabilities, applications, and services;
- telecommunications for disaster relief by leading ITU’s work on developing standards in
support of telecommunications for disaster relief/early warning, network resilience and
recovery, such as with Recommendation ITU-T E.106, on international emergency
preference scheme for disaster relief operations, which specifies means of prioritizing calls
in disaster situations, ensuring that telecommunication networks remain available for urgent
communications by clearing non-urgent calls;
- emergency telecommunication service provision.
Lead Study Group Roles
- Lead study group on numbering, naming, addressing and identification
- Lead study group on administration of international numbering, naming, addressing
and identification resources
- Lead study group on routing and interworking
- Lead study group on number portability and carrier switching
- Lead study group on operational aspects of telecommunication/ICT capabilities and
applications
- Lead study group on telecommunication/ICT service definition
- Lead study group on telecommunications/ICTs for disaster relief/early warning,
network resilience and recovery
- Lead study group on emergency services provision, definition and deployment
- Lead study group on telecommunication/ICT management
- Lead study group on operational aspects of identity management
- Lead study group on operational aspects of Internet of Things identification
Recommendations under SG2 responsibility
