1) The mobile phone market has grown rapidly with over 1.3 billion users globally and mobile networks expanding to reach more of the world's population. 2) Various wireless technologies are being developed and tested to deliver broadband internet access to both fixed and mobile users. These include 3G, WiFi, WiMax and other proprietary standards. 3) Different wireless technologies have advantages for different use cases depending on required data rates, range, mobility and other factors. Integration of these technologies into a common IP-based network is seen as key to delivering flexible multi-service connectivity.