INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - VIDEOTELEPHONY TELESERVICE PART 1 - ELECTROACOUSTIC CHARACTERISTICS FOR HANDSET TELEPHONY FUNCTION WHEN USING PULSE CODE MODULATION (PCM) ENCODING

Published date

12-01-2013

Publisher

European Telecommunications Standards Institute

Foreword
1 Scope
2 Normative references
3 Definitions and abbreviations
  3.1 Definitions
  3.2 Abbreviations
4 Mode "0U" characteristics
  4.1 Default encoding law
  4.2 A-law encoding
  4.3 Mu-law encoding
5 Characteristics for framed transmission in PCM
  encoding
  5.1 General
  5.2 Sensitivity - frequency response
  5.3 Sending and Receiving Loudness Rating (SLR and
      RLR)
  5.4 Sidetone
  5.5 Terminal Coupling Loss (TCL)
  5.6 Distortion
  5.7 Variation of gain with input level
  5.8 Out-of-band signals
  5.9 Noise
  5.10 Acoustic shock
  5.11 Absolute delay
  5.12 Lip synchronization
6 Characteristics for framed transmission in LD-CELP
  encoding
  6.1 General
  6.2 Sensitivity
Annex A (normative): Test methods
  A.1 General conditions for testing
  A.2 Delay
  A.3 Listener SideTone Rating (LSTR)
  A.4 Weighted Terminal Coupling Loss (TCLw)
Annex B (informative): Bibliography
History

Standardises electroacoustical characteristics of video telephony terminals for Integrated System Digital Network usin PCM A-law coding and handset functions.

Committee	TE 4
DocumentType	Miscellaneous Product
PublisherName	European Telecommunications Standards Institute
Status	Current

Standards	Relationship
DIN V I-ETS 300302-1:1995-05	Identical
PN I-ETS 300 302-1 : 2005	Identical
XP I ETS 300302-1 : 97 XP	Identical

I-ETS 300 302-3 : SEP 96	INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - VIDEOTELEPHONY TELESERVICE - AUDIO ASPECTS - WIDEBAND HANDSET
NF ETS 300807 : 2001	INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - AUDIO CHARACTERISTICS OF TERMINALS DESIGNED TO SUPPORT CONFERENCE SERVICES IN THE ISDN