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ES 201 235-4 : 1.3.1

Current
Current

The latest, up-to-date edition.

ACCESS AND TERMINALS (AT); SPECIFICATION OF DUAL-TONE MULTI-FREQUENCY (DTMF) TRANSMITTERS AND RECEIVERS; PART 4: TRANSMITTERS AND RECEIVERS FOR USE IN TERMINAL EQUIPMENT FOR END-TO-END SIGNALLING
Available format(s)

Hardcopy , PDF

Language(s)

English

Intellectual Property Rights
Foreword
1 Scope
2 References
3 Definitions, symbols and abbreviations
  3.1 Definitions
  3.2 Symbols
  3.3 Abbreviations
4 The receiver
  4.1 Area of application
  4.2 Operate and non-operate requirements
  4.3 Speech immunity performance
5 The transmitter
6 Electrical characteristics
Annex A (normative): Speech immunity test signal
Annex B (informative): Example test signal
Annex C (informative): Bibliography
History

Presents the level of detail that will enable manufacturers of telecommunications equipment incorporating DTMF signalling, to design the equipment such that it facilitates highly reliable signalling. This should not be taken to imply that any DTMF signalling system that fails to meet all the criteria described in the present document will not provide reliable signalling.

Committee
AT ANALOGUE
DocumentType
Standard
Pages
15
PublisherName
European Telecommunications Standards Institute
Status
Current

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BS 8521:2009 Specification for dual-tone multi-frequency (DTMF) signalling protocol for social alarm systems
EG 201 973-2 : 1.2.1 ACCESS AND TERMINALS (AT); PUBLIC SWITCHED TELEPHONE NETWORK; SUPPORT OF LEGACY TERMINALS BY BROADBAND IP NETWORKS AND EQUIPMENT; PART 2: ANALOGUE PSTN TERMINALS
TS 102 418 : 1.1.1 ACCESS AND TERMINALS (AT); SIMULTANEOUS VOICE AND TEXT ANNOUNCEMENTS; PSTN/ISDN; PROTOCOL DESCRIPTION
08/30129607 DC : DRAFT JULY 2008 BS 8521 - SPECIFICATION FOR DUAL-TONE MULTI-FREQUENCY (DTMF) SIGNALLING PROTOCOL FOR SOCIAL ALARM SYSTEMS (21TC)
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