ETSI TR 101 329-6 V1.1.1 (2000-07) Technical Report Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON); End to End Quality of Service in TIPHON Systems; Part 6: Actual measurements of network and terminal characteristics and performance parameters in TIPHON networks and their influence on voice quality 2 ETSI TR 101 329-6 V1.1.1 (2000-07) Reference DTR/TIPHON-05004 Keywords IP, network, performance, quality, terminal, voice ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.:+33492944200 Fax:+33493654716 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. 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ETSI 3 ETSI TR 101 329-6 V1.1.1 (2000-07) Contents Intellectual Property Rights................................................................................................................................5 Foreword ............................................................................................................................................................5 1 Scope........................................................................................................................................................6 2 References................................................................................................................................................6 3 Abbreviations ...........................................................................................................................................8 4 List of Measurement Results....................................................................................................................8 5 General Measurement Results .................................................................................................................9 5.1 Call Set-up..........................................................................................................................................................9 5.2 Subjective Testing ..............................................................................................................................................9 5.2.1 Simulation Results of VoIP Scenarios ..........................................................................................................9 5.2.1.1 Introduction.............................................................................................................................................9 5.2.1.2 Measurement Set-up................................................................................................................................9 5.2.1.2.1 Basics ................................................................................................................................................9 5.2.1.2.2 Test Cases........................................................................................................................................10 5.2.1.3 Results...................................................................................................................................................11 5.2.1.3.1 G.711 + Codec + G.711 .................................................................................................................11 5.2.1.3.2 Tandem Conditions with GSM xFR ................................................................................................12 5.2.2 Subjective Results on impairment effects of IP packet loss........................................................................12 5.2.2.1 Introduction...........................................................................................................................................12 5.2.2.2 Measurement Set-up..............................................................................................................................12 5.2.2.2.1 Subjects ...........................................................................................................................................12 5.2.2.2.2 Speech Processing ...........................................................................................................................13 5.2.2.2.3 Procedure.........................................................................................................................................13 5.2.2.2.4 MOS Data and MNRU Conditions..................................................................................................13 5.2.2.3 Results...................................................................................................................................................14 5.2.2.3.1 Reference Codec Conditions ...........................................................................................................14 5.2.2.3.2 Packet Loss Conditions ...................................................................................................................14 5.2.2.3.3 Tables of Results .............................................................................................................................15 5.3 Objective testing...............................................................................................................................................16 5.3.1 Objective Speech Quality Evaluation on Speech Data recorded at the SuperOp 99 event in Hawaii.........16 5.3.1.1 Introduction...........................................................................................................................................16 5.3.1.2 Measurement Set-up..............................................................................................................................16 5.3.1.3 Quality Assessment ...............................................................................................................................17 5.3.1.4 Results...................................................................................................................................................17 5.4 Delay ................................................................................................................................................................18 5.4.1 Delay between two analogue PBX subscribers...........................................................................................18 5.4.1.1 Introduction...........................................................................................................................................18 5.4.1.2 Measurement Set-up..............................................................................................................................18 5.4.1.3 Results...................................................................................................................................................19 5.4.1.4 Conclusion ............................................................................................................................................19 5.4.2 Delay between two PABX systems with analogue subscribers...................................................................19 5.4.2.1 Measurement Set-up:.............................................................................................................................19 5.4.2.2 Result ....................................................................................................................................................20 5.4.3 Delay between two PC SW clients..............................................................................................................20 5.4.3.1 Measurement Set-up..............................................................................................................................20 5.4.3.2 Results...................................................................................................................................................20 5.4.4 Delay between an analogue PBX subscriber and a PC client .....................................................................20 5.4.4.1 Measurement Set-up..............................................................................................................................20 5.4.4.2 Conclusion ............................................................................................................................................21 5.5 Loudness Ratings..............................................................................................................................................21 5.6 Echo..................................................................................................................................................................21