QUALITY OF SERVICE PARAMETERS
ANNEX X附則
ANNEX X QUALITY OF SERVICE PARAMETERS Quality-of-Service Parameters, Definitions and Measurement Methods referred to in Article 104 For providers of access to a public electronic communications network PARAMETER (Note 1) DEFINITION MEASUREMENT METHOD Supply time for initial connection ETSI EG 202 057 ETSI EG 202 057 Fault rate per access line ETSI EG 202 057 ETSI EG 202 057 Fault repair time ETSI EG 202 057 ETSI EG 202 057 For providers of interpersonal communications services who exert control over at least some elements of the network or have a service level agreement to that effect with undertakings providing access to the network PARAMETER (Note 2) DEFINITION MEASUREMENT METHOD Call set up time ETSI EG 202 057 ETSI EG 202 057 Bill correctness complaints ETSI EG 202 057 ETSI EG 202 057 Voice connection quality ETSI EG 202 057 ETSI EG 202 057 Dropped call ratio ETSI EG 202 057 ETSI EG 202 057 Unsuccessful call ratio (Note 2) ETSI EG 202 057 ETSI EG 202 057 Failure probability Call signalling delays Version number of ETSI EG 202 057-1 is 1.3.1 (July 2008) For providers of internet access services PARAMETER DEFINITION MEASUREMENT METHOD Latency (delay) ITU-T Y.2617 ITU-T Y.2617 Jitter ITU-T Y.2617 ITU-T Y.2617 Packet loss ITU-T Y.2617 ITU-T Y.2617 Note 1 Parameters shall allow for performance to be analysed at a regional level (namely, no less than level 2 in the Nomenclature of Territorial Units for Statistics (NUTS) established by Eurostat). Note 2 Member States may decide not to require up-to-date information concerning the performance for those two parameters to be kept if evidence is available to show that performance in those two areas is satisfactory.