The National Institute of Telecommunications organizes and co-organizes regular international scientific conferences:

• International Conference on Transparent Optical Networks (ICTON) dedicated to optical fiber communications networks (since 1999).
• International Wrocław Symposium and Exhibition on Electromagnetic Compatibility symposium organized every two years jointly with Wrocław Institute of Technology dedicated to issues of electromagnetic compatibility (since 1972).

Archives:

• International Conference on Decision Support for Telecommunications and Information Society (DSTIS) dedicated to supporting decisions in the area of telecommunications and information society (2000–2011),
• ICTON - "Mediterranean Winter" (ICTON-MW) is a satellite event to ICTON intended to provide an international forum of discussion and promotion of research advances in Mediterranean region (2007–2009),
• International Conference on Semiconductor Materials and Optics (SMMO) dedicated to physics and technology of novel semiconductor and optical materials (2007–2008),

• Centre of Excellence Workshop on Optimizing the Transition to a Next Generation Network (2008),
• Construction of a Local Telecommunications Infrastructure Using Structural Funds of the European Union,
• International Experiences on Interconnection Issues (INTERCON) annual forum for exchange of views on issues associated with liberalization of markets for telecommunication services (1998–2004),
• International Conference on Research for Information Society (RIS) as a part of propagation of the information society concept, forum for discussions at the National Institute of Telecommunications on projects, initiatives and achievements in that area (1998–2003),
• Workshop on the Prospects of Personal Wireless Communications - NEXWAY (PPWC) workshops organized by the National Institute of Telecommunications under NEXWAY network of excellence (2004–2005).