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ETSI ES 201 235-4

Final draft Version 1.2.1Access 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

standard by European Telecommunications Standards Institute , 03/01/2002

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Full Description

Update of ES 201 235-4 to include new information on test tones and levels for digital transmitters
 

Product Details

Edition:
Final draft V 1.2.1
Published:
03/01/2002
Number of Pages:
15
 

Document History

  1. ETSI ES 201 235-4


    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

    • Most Recent

  2. ETSI ES 201 235-4

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    Final draft Version 1.2.1Access 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

    • Historical Version

  3. ETSI ES 201 235-4


    Specification of Dual Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 4: Receivers for use in Terminal Equipment for end-to-end signalling

    • Historical Version