Sigma Systems joined the European Telecommunications Standards Institute (ETSI) Network Functions Virtualization (NFV) Industry Specifications Group (ISG). The NFV group within ETSI is working to develop standards for Network Functions Virtualization and provides a space for members to share experiences with NFV development and early implementation. The membership of the NFV ISG has grown to over 230 companies, including 37 major service providers and representatives from telecom and IT vendors. In January, the ETSI NFV group completed Phase 1 of its work publishing 11 specifications covering fundamental building blocks for NFV implementation by service providers.