Discover the Working Groups Find out more about each working group and what they do. FASG Stay ahead of potential fraud and security threats by implementing preventative measures > IDS Benefit from flexible data exchange processes to support billing and settlement > IG Identify threats and opportunities in new internet technologies > NG Support dependable performance of networks for interconnection and roaming > SIM Build consensus on SIM technology and services > TSG Avoid fragmentation and enhance your device, usability, security and consistency > WAS Support development of charging models and agreement templates to ease introduction of new services >