It is recognized that IP-based networks are increasingly used to deliver voice services to customers. These networks can impact the end-to-end service quality perceived by users. In order to maintain network performance required to deliver the desired service quality, several operational issues have to be considered. These issues include defining network performance measuresand their objectives, interworking issues between networks employing a variety of technologies, network measurement points, information to be exchanged between network operators, etc.
ITU-T E.470 SPANISH-2005 Referenced Document
ITU-T E.425-2002 Internal Automatic Observations Series E: Overall Network Operation Telephone Service Service Operation and Human Factors Network Management - Checking the Quality of the International Phone Service Study Group 2
ITU-T E.428-1992 Connection Retention - Telephone Network and ISDN Quality of Service Network Management and Traffic Engineering (Study Group II) 4 pp
ITU-T E.430-1992 Quality of Service Framework (Study Group II) 6 pp
ITU-T E.431-1992 Service Quality Assessment for Connection Set-up and Release Delays (Study Group II) 6 pp
ITU-T E.434-1992 Subscriber-to-Subscriber Measurement of Public Switched Telephone Network (Study Group II) 11 pp
ITU-T E.437-1999 Comparative Metrics for Network Performance Management - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors Quality of Service Network Management and Traffic Engineering - Network Management - Checking the Quality of
ITU-T G.1000-2001 Communications Quality of Service: A Framework and Definitions Series G: Transmission Systems and Media Digital Systems and Networks Quality of Service and Performance Study Group 12*, 2024-04-19 Update
ITU-T G.1010-2001 End-User Multimedia QoS Categories Series G: Transmission Systems and Media Digital Systems and Networks Quality of Service and Performance Study Group 12*, 2024-04-19 Update
ITU-T G.177-1999 Transmission Planning for Voiceband Services over Hybrid Internet/PSTN Connections - Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - Transmission Plan Aspects of Special Circuits and
ITU-T H.323-2003 Packet-based multimedia communications systems SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS Infrastructure of audiovisual services ?Systems and terminal equipment for audiovisual services Study Group 16
ITU-T I.350-1993 General Aspects of Quality of Service and Network Performance in Digital Networks Including ISDNs Study Group XVIII
ITU-T P.561-2002 In-Service Non-Intrusive Measurement Device - Voice Service Measurements Study Group 12
ITU-T P.562-2004 Analysis and interpretation of INMD voice-service measurements SERIES P: TELEPHONE TRANSMISSION QUALITY TELEPHONE INSTALLATIONS LOCAL LINE NETWORKS Objective measuring apparatus Study Group 12
ITU-T P.862-2001 Perceptual evaluation of speech quality (PESQ): An objective method for end-to-end speech quality assessment of narrow-band telephone networks and speech codecs--SERIES P: TELEPHONE TRANSMISSION QUALITY TELEPHONE INSTALLATIONS LOCAL LINE NETWORKS Methods
ITU-T E.470 SPANISH-2005 history
2005ITU-T E.470 SPANISH-2005 Operational considerations for QoS of voice over IP-based networks with PSTN-IP-PSTN architecture