ETSI TS 101 377-2-1
ETSI TS 101 377-2-1
GEO-Mobile Radio Interface Specifications; Part 2: Service specifications; Sub-part 1: Teleservices supported by a GMR-2 Public Satellite Mobile Network (PSMN) ; GMR-2 02.003
standard published 03/01/2001 by European Telecommunications Standards Institute
