1. Knowledge of specialists
As globalization, telecommunication knowledge will gradually accumulate thoroughly informative-based mobile roaming rate control. There are studies result in various parts of the world which show that in Arab world, American, Asia-Pacific and Africa have agenda setting to control mobile roaming control with suggested or regulated by international organizations including International Telecommunications Regulations (ITU), Organization for Economic Co-operation and Development (OECD) proposed the recommendation on international mobile roaming services for voice and data roaming, and World Trade Organization (WTO) whose roles to promote more competitive in delivery of roaming service. In ASEAN, Singapore and Malaysia have reached collaborative regulation to reduce roaming price up to 30% for voice calls by all mobile operators (“Bilateral mobile roaming”, 2011). In this intervention, Singapore approach is based on industrial policy reflecting its position as ASEAN international business hub but the status of Malaysia was served as supporter in political reasons. In addition, European reason was primarily based on political support to solve the problem in European project. For cell phone roaming rate control, Liau Yun Qing, 2012 said that it is overambitious to create a free mobile roaming zone in Southeast Asian region as supported by StarHub Co.,Ltd in Singapore stated that there is no free roaming elsewhere in the world. However, there is some controversies about this because Telkom Co.,Ltd in Indonesia believes that even taking time but it is possible to create roaming free zone. From this occurrence, It can be analyzed from specialists knowledge that the possible alternative for roaming rate control is reducing approach.