SS-ETS-300581-7 Complete Document History
Digital cellular telecommunications system (Phase2) - Full rate speech - Part 7: ANSI-C code for the GSM half rate speech codec - (GSM 06.06 version4.2.1)

Complete Current Edition:
   EDITION 2 - ENGLISH LANGUAGE EDITION - June 26, 1998

Obsolete Revision Information:
   EDITION 1 - ENGLISH LANGUAGE EDITION - March 29, 1996