SS-ETS-300542 Complete Document History
Digital cellular telecommunications system (Phase 2) - Line identification supplementary services - Stage 2 - (GSM 03.81 version 4.8.1)

Complete Current Edition:
   EDITION 3 - ENGLISH LANGUAGE EDITION - Jan. 22, 1999

Obsolete Revision Information:
   EDITION 2 - ENGLISH LANGUAGE EDITION - April 30, 1997
   EDITION 1 - ENGLISH LANGUAGE EDITION - June 30, 1995