EG 202 765-2 : 1.1.1
Current
The latest, up-to-date edition.
SPEECH PROCESSING, TRANSMISSION AND QUALITY ASPECTS (STQ); QOS AND NETWORK PERFORMANCE METRICS AND MEASUREMENT METHODS - PART 2: TRANSMISSION QUALITY INDICATOR COMBINING VOICE QUALITY METRICS
Hardcopy , PDF
English
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Foreword
1 Scope
2 References
2.1 Normative references
2.2 Informative references
3 Abbreviations
4 Introduction
5 Measurement type
6 Voice quality scale
7 List of indicators
7.1 Post Dialling Delay
7.2 Media establishment delay
7.3 Unsuccessful call ratio
7.4 Premature release probability
7.5 Level of active speech signal at reception
7.6 Noise level at reception
7.7 Noise to signal ratio at reception
7.8 Speech signal attenuation (or gain) after
transmission
7.9 Talker echo delay
7.10 Talker echo attenuation
7.11 Listening speech quality
7.12 Listening speech quality stability
7.13 End to end delay
7.14 End to end delay variation
7.15 Frequency responses at the reception
8 Measurement frequency
9 Duration of test calls
10 Measurement configurations
10.1 VoIP services
10.2 VoIP services in triple play context
11 Measurement locations and their distribution
11.1 Measurement location requirements
11.2 Method to determine measurement locations
12 Results presentation
12.1 One-view visualization of performances
12.2 Non-compliant limits for result visualization
13 Publication of the results
Annex A: Indicator stability formulation
A.1 Presentation
A.2 Formulation
A.3 Graphic illustration of the formulation
A.4 Some examples of stability indicator calculated
on Listening Speech Quality
Annex B: Calibration to take into account the frequency
response of transducers
B.1 Method presentation
Annex C: Echo presentation
C.1 Talker echo
C.2 Listener echo
Annex D: Examples of measurement point distribution
D.1 Example of France
D.2 Example of Switzerland
History
Describes indicators and methodologies for a use in a context of end-user quality characterization and supervision of voice telephony services.
| Committee |
STQ
|
| DocumentType |
Standard
|
| Pages |
37
|
| PublisherName |
European Telecommunications Standards Institute
|
| Status |
Current
|
| EG 202 843 : 1.2.1 | USER GROUP; QUALITY OF ICT SERVICES; DEFINITIONS AND METHODS FOR ASSESSING THE QOS PARAMETERS OF THE CUSTOMER RELATIONSHIP STAGES OTHER THAN UTILIZATION |
| TR 102 793 : 1.2.1 | SPEECH AND MULTIMEDIA TRANSMISSION QUALITY (STQ); MEASUREMENTS OF CALL ESTABLISHMENT PERFORMANCE IN IP NETWORKS |
| TR 102 716-2 : 1.1.2 | SPEECH AND MULTIMEDIA TRANSMISSION QUALITY (STQ); GUIDELINES, OBJECTIVES AND RESULTS OF SPEECH QUALITY ANALYSIS IN THE CONTEXT OF INTERWORKING PLUGTESTS FOR MULTIPLAY SERVICES; PART 2: RESULTS |
| EG 202 765-1 : 1.1.2 | SPEECH AND MULTIMEDIA TRANSMISSION QUALITY (STQ); QOS AND NETWORK PERFORMANCE METRICS AND MEASUREMENT METHODS; PART 1: GENERAL CONSIDERATIONS |
| EG 202 934 : 1.1.2 | USER GROUP; THE ASSESSMENT OF THE OVERALL QUALITY OF SERVICES (QOS) AS PERCEIVED BY THE USERS; DEFINITION OF QOS INDEXES FOR ALL THE CUSTOMER RELATIONSHIP STAGES |
| TS 102 845 : 1.2.1 | USER GROUP; QUALITY OF ICT SERVICES; REQUIREMENTS FOR CHECK-UP ON METERING AND BILLING PROCESSES |
| TR 102 716-1 : 1.1.1 | SPEECH AND MULTIMEDIA TRANSMISSION QUALITY (STQ); GUIDELINES, OBJECTIVES AND RESULTS OF SPEECH QUALITY ANALYSIS IN THE CONTEXT OF INTERWORKING PLUGTESTS FOR MULTIPLAY SERVICES; PART 1: GUIDELINES AND OBJECTIVES |
| EG 201 769 : 1.1.2 | SPEECH PROCESSING, TRANSMISSION & QUALITY ASPECTS (STQ); QOS PARAMETER DEFINITIONS AND MEASUREMENTS; PARAMETERS FOR VOICE TELEPHONY SERVICE REQUIRED UNDER THE ONP VOICE TELEPHONY DIRECTIVE 98/10/EC |
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