- The worldwide GSM Association.
- GSM and UMTS Operators.
- GSM and UMTS Equipment manufacturers.
- The IEEE, The Institute of Electrical and
Electronics Engineers.
- The IEEE
Communications Society.
- The NERG, Nederlands Electronica en Radio
Genoodschap (Dutch).
- The ITU, International Telecommunications
Union.
- ETSI, The European Telecommunications
Standards Institute.
Please come back later.