INTEGRATED SERVICES DIGITAL NETWORK - (ISDN) - VIDEOTELEPHONY TELESERVICE - AUDIO ASPECTS - WIDEBAND CODING

Published date

01-12-2013

Publisher

European Telecommunications Standards Institute

Foreword
1 Scope
2 Normative references
3 Definitions and abbreviations
  3.1 Definitions
  3.2 Abbreviations
4 Requirements
  4.1 General
  4.2 Sensitivity - frequency response
  4.3 Sending and Receiving Loudness Ratings
  4.4 Volume control range
  4.5 Terminal Coupling Loss
  4.6 Distortion
  4.7 Out of band signals
  4.8 Noise
  4.9 Delay
  4.10 Lip synchronisation
  4.11 Switching characteristics
Annex A (informative): Bibliography
History

Provides the electroacoustic characteristics for 7 kHz bandwidth loudspeaking and handsfree functions implemented in videotelephony terminals intended for use in the videotelephone teleservice in the Integrated Services Digital Network (ISDN) using Adaptive Differential Pulse Code Modulation (ADPCM) encoding according to CCITT Recommendation G.722 (see annex A).

Committee	TE 4
DocumentType	Standard
PublisherName	European Telecommunications Standards Institute
Status	Current
Supersedes	PRI-ETS 300 302-4 : 1996

Standards	Relationship
PN I-ETS 300 302-4 : 2005	Identical

I-ETS 300 245-3 : FEB 95	INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - TECHNICAL CHARACTERISTICS OF TELEPHONY TERMINALS - PULSE CODE MODULATION (PCM) A-LAW, LOUDSPEAKING AND HANDSFREE TELEPHONY
ETS 300 145 : 20002	INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - AUDIOVISUAL SERVICES - VIDEOTELEPHONE SYSTEMS AND TERMINAL EQUIPMENT OPERATING ON ONE OR TWO 64 KBIT/S CHANNELS
I-ETS 300 245-5 : DEC 95	INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - TECHNICAL CHARACTERISTICS OF TELEPHONY TERMINALS - WIDEBAND (7KHZ) HANDSET TELEPHONY