SS-636325 › Complete Document History
Telecommunications equipment - Private branch exchanges (PBXs) - Signalling requirements in analogue interface for incoming exchange line


Obsolete Revision Information:
   EDITION 3 - ENGLISH LANGUAGE EDITION - May 10, 1996
   EDITION 2 - ENGLISH LANGUAGE EDITION - Dec. 4, 1991
   EDITION 1 - ENGLISH LANGUAGE EDITION - Sept. 13, 1989