I-ETS 300 245-6 : JAN 96
Current
The latest, up-to-date edition.
INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - TECHNICAL CHARACTERISTICS OF TELEPHONY TERMINALS - WIDEBAND (7KHZ), LOUDSPEAKING AND HANDS FREE TELEPHONY
12-01-2013
Foreword
1 Scope
2 Normative references
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 D-channel characteristics
5 In-band signalling characteristics
6 Transmission characteristics
6.1 Relative level
6.2 Signal encoding
6.3 Signal decoding
6.4 Speech transmission characteristics
Annex A (normative): Test methods
A.1 General conditions for testing
A.2 Testing of transmission requirements
Annex B (informative): Delay measurement methods
B.1 Introduction
B.2 Cross-correlation method
B.3 Method based on group delay
Annex C (informative): Bibliography
History
To standardise electroacoustical characteristics for loudspeaking and handsfree telephony terminals using G.722 coding.
| Committee |
TE 4
|
| DocumentType |
Miscellaneous Product
|
| PublisherName |
European Telecommunications Standards Institute
|
| Status |
Current
|
| Standards | Relationship |
| PN I-ETS 300 245-6 : 2005 | Identical |
| EN 300 176-2 : 2.2.1 | DIGITAL ENHANCED CORDLESS TELECOMMUNICATIONS (DECT); TEST SPECIFICATION; PART 2: AUDIO AND SPEECH |
| NF ETS 300807 : 2001 | INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - AUDIO CHARACTERISTICS OF TERMINALS DESIGNED TO SUPPORT CONFERENCE SERVICES IN THE ISDN |
| ES 202 740 : 1.4.1 | SPEECH AND MULTIMEDIA TRANSMISSION QUALITY (STQ); TRANSMISSION REQUIREMENTS FOR WIDEBAND VOIP LOUDSPEAKING AND HANDSFREE TERMINALS FROM A QOS PERSPECTIVE AS PERCEIVED BY THE USER |
| TR 101 329 : 2.1.1 | TELECOMMUNICATIONS AND INTERNET PROTOCOL HARMONIZATION OVER NETWORKS (TIPHON) - GENERAL ASPECTS OF QUALITY OF SERVICE (QOS) |
| EN 300 175-8 : 2.6.1 | DIGITAL ENHANCED CORDLESS TELECOMMUNICATIONS (DECT); COMMON INTERFACE (CI); PART 8: SPEECH AND AUDIO CODING AND TRANSMISSION |
| 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 |
| I-ETS 300 245-2 : FEB 96 | INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - TECHNICAL CHARACTERISTICS OF TELEPHONY TERMINALS - PCM A LAW HANDSET TELEPHONY |
| I-ETS 300 245-5 : DEC 95 | INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - TECHNICAL CHARACTERISTICS OF TELEPHONY TERMINALS - WIDEBAND (7KHZ) HANDSET TELEPHONY |
| ISO 3:1973 | Preferred numbers Series of preferred numbers |
| ETS 300 200012 : 20001 | INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - BASIC USER-NETWORK INTERFACE - LAYER 1 SPECIFICATION AND TEST PRINCIPLES |
| IEC 60651:1979+AMD1:1993+AMD2:2000 CSV | Sound level meters |
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