ITU's 160 anniversary

Committed to connecting the world

Mandate and lead roles

​Signalling requirements, protocols, test specifications and combating counterfeit telecommunication/ICT devices
(Study Period 2025 - ​​2028​)

​ITU-T Study Group 11 has been assigned responsibility for studies related to signalling-system architecture, signalling requirements and protocols, for all types of networks such as future networks (FN), cloud-computing networks, VoLTE/ViLTE/VoNR/ViNR based network interconnection, virtual networks, multimedia, next-generation networks (NGNs), signalling for legacy network interworking, satellite-terrestrial networks, software-defined networking (SDN) technologies, network function virtualization (NFV) technologies, International Mobile Telecommunications (IMT) systems, including IMT-2030 networks (non-radio part), quantum key distribution network (QKDN) and related technologies, and augmented reality.​

ITU-T Study Group 11 is also responsible for studies to combat counterfeiting, tampering and theft of telecommunication/ICT devices, counterfeiting and tampering of telecommunication/ICT software and the negative impacts of these issues.

ITU-T Study Group 11 will also develop test specifications for testing conformance and interoperability (C&I) for all types of networks, technologies and services, a testing methodology and test suites for standardized network parameters in relation to the framework for Internet-related performance measurement, as well as for existing and emerging technologies.

In addition, ITU-T Study Group 11 maintains and improves a testing laboratory recognition procedure in ITU-T through the work of the ITU-T Conformity Assessment Steering Committee (CASC).

Lead Study Group Roles

Recommendations under the SG11 responsibility