He advises the Directorate General of Posts and Telecommunications interalia on telecommunication legal regulations and frequency management, as well as assisting them in preparing the Indonesian delegation to World Radio Conferences and related Asia Pacific Telecommunity (APT) meetings since 1995 up to now;

He is lecturer on Regulatory Aspects and International Bodies for the Telecommunication Graduates Programme of the University of Indonesia (UI); He has prepared a Draft Master Plan for the Ministry for Tourism, Posts and Telecommunications concerning the Policy and the Regulatory Framework for Telecommunications by Satellite;

He assists multi-national GMPCS companies in obtaining international frequency allocations at international forums of ITU, providing advice on Sector Policy and Regulatory issues, and assisting them in obtaining their licenses in Indonesia;

He provided private national and joint venture telecommunication companies with studies and field surveys. A concept has been prepared for PT. Telecom Netherlands concerning “Contract Management” cooperation between PT. TELKOM and national companies (including foreign partnership);

He provided market survey studies for multinational information companies, interalia on the telecommunication market potential and more specific studies on certain cellular systems and call centers. A draft Market Study on “Indonesia Telecom – An Industry and Market Analysis” had been provided to DATAPRO – a subsidiary of McGraw Hill;

As the first Director of the Bureau for Telecommunication Development (BDT) of the International Telecommunication Union (ITU), he had laid down the ground rules for a pro-active private participation in the Telecommunication Bureau for Development or BDT activities, 1993-94; As Deputy Director General for Standardization of the Directorate General of Posts and Telecommunications he was responsible for developing the national telecommunication standardization and licensing, 1991-92;

He had developed Indonesia’s active participation policy and tradition in the International telecommunication forums as Director of Conventions and Legal Regulations and thereafter Deputy Director General for Telecommunications, 1980-90;

He had been participating and leading many Indonesian delegations to various Conferences and Meetings at ITU, INTELSAT, APT (Asia Pacific Telecommunity), APEC-Tel and other forums, 1978-92;

As Chairman of the Administrative Council (former Council) of ITU, 1989-90, he received the Silver Medal– ITU’s highest recognition for services; He was Program Manager of the first PALAPA Domestic Communication Satellite PERUMTEL the former public telecommunication monopoly, 1975-77;

He held positions as VHF/UFH Unit Chief and Microwave and Testing Unit Chief of the Research and Development Center of Posts and Telecommunications, 1963-73.