T-REC-P.10-200607-I!!PDF-E.pdf

I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T P.10/G.100 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (07/2006) SERIES P: TELEPHONE TRANSMISSION QUALITY, TELEPHONE INSTALLATIONS, LOCAL LINE NETWORKS Vocabulary and effects of transmission parameters on customer opinion of transmission quality SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS International telephone connections and circuits General definitions Vocabulary for performance and quality of service ITU-T Recommendation P.10/G.100 ITU-T P-SERIES RECOMMENDATIONS TELEPHONE TRANSMISSION QUALITY, TELEPHONE INSTALLATIONS, LOCAL LINE NETWORKS Vocabulary and effects of transmission parameters on customer opinion of transmission quality Series P.10 Subscribers lines and sets Series P.30 P.300 Transmission standards Series P.40 Objective measuring apparatus Series P.50 P.500 Objective electro-acoustical measurements Series P.60 Measurements related to speech loudness Series P.70 Methods for objective and subjective assessment of quality Series P.80 P.800 Audiovisual quality in multimedia services Series P.900 Transmission performance and QoS aspects of IP end-points Series P.1000 For further details, please refer to the list of ITU-T Recommendations. ITU-T Rec. P.10/G.100 (07/2006) i ITU-T Recommendation P.10/G.100 Vocabulary for performance and quality of service Summary This Recommendation gives the definitions which have been found to be useful for the work of ITU-T Study Group 12 in the study of Performance and Quality of Service. It is based on the contents of ITU-T Recs P.10 (1998) and G.100 (2001) with additional amendments and corrections. Source ITU-T Recommendation P.10/G.100 was approved on 14 July 2006 by ITU-T Study Group 12 (2005-2008) under the ITU-T Recommendation A.8 procedure. ii ITU-T Rec. P.10/G.100 (07/2006) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression Administration is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g. interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words shall or some other obligatory language such as must and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2006 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. ITU-T Rec. P.10/G.100 (07/2006) iii CONTENTS Page 1 Introduction . 1 2 Terms and definitions. 1 ITU-T Rec. P.10/G.100 (07/2006) 1 ITU-T Recommendation P.10/G.100 Vocabulary for performance and quality of service 1 Introduction This Recommendation contains terms and definitions appropriate to the work of Study Group 12. It is based on the contents of ITU-T Recs P.10 (1998) and G.100 (2001) with additional amendments and corrections. 2 Terms and definitions This Recommendation defines the following terms in alphabetic order: 0-1 3.1 kHz handset telephony A real-time two-way speech communication within the frequency range approximately from 300 to 3400 Hz using one or more telecommunic