SS-ETS-300064 | Integrated Services Digital Network (ISDN) - Direct Dialling In (DDI) supplementary service - Digital subscriber signalling system No. one (DSS1) protocol | Document Center, Inc.

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Integrated Services Digital Network (ISDN) - Direct Dialling In (DDI) supplementary service - Digital subscriber signalling system No. one (DSS1) protocol

Obsolete Revision Information:

ED. 1 CORRIGENDUM 1 - ENGLISH LANGUAGE EDITION - May 20, 1994
EDITION 1 - ENGLISH LANGUAGE EDITION - Jan. 29, 1992