SS-ETS-300058-4 › Complete Document History
Integrated Services Digital Network (ISDN) - Call Waiting (CW) supplementary service - DigitalSubscriber Signalling System No. one (DSS1) protocol - Part 4: Abstract Test Suite (ATS)and partial Protocol Implementation extra Information f or Testing
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EDITION 1 - ENGLISH LANGUAGE EDITION - June 13, 1997
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