SS-ETS-300549 | Digital cellular telecommunications system (Phase2) - Unstructured Supplementary Service Data (USSD) - Stage 2 (GSM 03.90) | Document Center, Inc.

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Digital cellular telecommunications system (Phase2) - Unstructured Supplementary Service Data (USSD) - Stage 2 (GSM 03.90)

Complete Current Edition:

EDITION 2 - ENGLISH LANGUAGE EDITION - Sept. 6, 1996

Obsolete Revision Information:

EDITION 1 - ENGLISH LANGUAGE EDITION - June 30, 1995