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ES 201 235-2 : 1.2.1

Current

Current

The latest, up-to-date edition.

SPECIFICATION OF DUAL TONE MULTI-FREQUENCY (DTMF) TRANSMITTERS AND RECEIVERS; PART 2: TRANSMITTERS

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English

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Foreword
1 Scope
2 References
3 Definitions, symbols and abbreviations
  3.1 Definitions
  3.2 Symbols
  3.3 Abbreviations
4 DTMF Transmitter
  4.1 Area of application
  4.2 Signal output requirements
      4.2.1 Frequency tolerances
      4.2.2 Sending level
      4.2.3 Unwanted frequency components when a DTMF code is
            being transmitted
      4.2.4 Signal timing
            4.2.4.1 Tone duration
            4.2.4.2 Pause duration
            4.2.4.3 Rise time
  4.3 Electrical characteristics
      4.3.1 Speech suppression
      4.3.2 Dial tone
History

Provides details that will enable manufacturers of telecommunications equipment incorporating DTMF signalling, to design the equipment such that it facilitates highly reliable signalling.

Committee
AT ANALOGUE
DocumentType
Standard
Pages
10
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
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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)
TS 126 114 : 13.3.0 UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEM (UMTS); LTE; IP MULTIMEDIA SUBSYSTEM (IMS); MULTIMEDIA TELEPHONY; MEDIA HANDLING AND INTERACTION (3GPP TS 26.114 VERSION 14.7.0 RELEASE 14)
TS 101 909-18 : 1.3.1 DIGITAL BROADBAND CABLE ACCESS TO THE PUBLIC TELECOMMUNICATIONS NETWORK; IP MULTIMEDIA TIME CRITICAL SERVICES; PART 18: EMBEDDED MEDIA TERMINAL ADAPTER (E-MTA) OFFERING AN INTERFACE TO ANALOGUE TERMINALS AND CABLE MODEM
TS 103 161-3 : 1.1.1 ACCESS, TERMINALS, TRANSMISSION AND MULTIPLEXING (ATTM); INTEGRATED BROADBAND CABLE AND TELEVISION NETWORKS; IPCABLECOM 1.5; PART 3: AUDIO CODEC REQUIREMENTS FOR THE PROVISION OF BI-DIRECTIONAL AUDIO SERVICE OVER CABLE TELEVISION NETWORKS USING CABLE MODEMS
TR 103 122 : 1.1.1 SPEECH AND MULTIMEDIA TRANSMISSION QUALITY (STQ); QOS OF CONNECTIONS FROM CURRENT TECHNOLOGIES TO LTE FOR DELAY SENSITIVE APPLICATIONS
TS 123 014 : 13.0.0 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) (GSM); UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEM (UMTS); SUPPORT OF DUAL TONE MULTI-FREQUENCY (DTMF) SIGNALLING (3GPP TS 23.014 VERSION 14.0.0 RELEASE 14)
SCTE 165-2 : 2016 IPCABLECOM 1.5 - PART 2: AUDIO/VIDEO CODECS
TS 124 008 : 13.5.0 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) (GSM); UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEM (UMTS); LTE; MOBILE RADIO INTERFACE LAYER 3 SPECIFICATION; CORE NETWORK PROTOCOLS; STAGE 3 (3GPP TS 24.008 VERSION 14.7.0 RELEASE 14)
TR 101 973-2 : 1.1.1 ACCESS AND TERMINALS (AT); PUBLIC SWITCHED TELEPHONE NETWORK; SUPPORT OF LEGACY TERMINALS BY BROADBAND IP EQUIPMENT; LISTING OF THE MOST RELEVANT FEATURES AND FUNCTIONALITIES; PART 2: ANALOGUE PSTN TERMINALS
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TR 101 182 : 1.1.1 ANALOGUE TERMINALS AND ACCESS (ATA) - DEFINITIONS, ABBREVIATIONS AND SYMBOLS

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