ETR 206 : 20001
Current
Current
The latest, up-to-date edition.
PUBLIC SWITCHED TELEPHONE NETWORK (PSTN); MULTIFREQUENCY SIGNALLING SYSTEM TO BE USED FOR PUSH-BUTTON TELEPHONES
Available format(s)
Hardcopy , PDF
Language(s)
English
Foreword
Endorsement notice
1 SIGNALLING SYSTEM PRINCIPLES AND CODING
2 PUSH-BUTTON SENDER
3 THE RECEIVER FOR ANALOGUE EXCHANGES
4 THE RECEIVER FOR DIGITAL EXCHANGES
History
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