Discover the Working Groups Find out more about each working group and what they do. Fraud & Security Stay ahead of potential fraud and security threats by implementing preventative measures > Wholesale Agreements & Solutions Support development of charging models and agreement templates to ease introduction of new services > Networks Support dependable performance of networks for interconnection and roaming > Terminal Steering Avoid fragmentation and enhance your device, usability, security and consistency > SIM Build consensus on SIM technology and services > Interoperability Data Specifications & Settlement Benefit from flexible data exchange processes to support billing and settlement > Internet Identify threats and opportunities in new internet technologies > Distributed Ledger Technology Learn more >