# The Telecommunications (Open Network Provision) (Voice Telephony) Regulations 1998, Schedule III: SUPPLY-TIME AND QUALITY-OF-SERVICE INDICATORS, DEFINITIONS AND MEASUREMENT METHODS IN ACCORDANCE WITH THE REQUIREMENTS OF REGULATIONS 19 AND 20


INDICATOR (NOTE 1)
DEFINITION
MEASUREMENT METHOD
Note 1
Indicators should allow for performance to be analysed at a regional level (i.e. no less than level 2 in the Nomenclature of Territorial Units for Statistics (NUTS) established by Eurostat.)
Note 2
Billing accuracy. National definitions and measurement methods should be used until such time as a common definition and measurement method are agreed at the European level.
supply time for initial connection
ETSI ETR 138
ETSI ETR 138
fault rate per access line
ETSI ETR 138
ETSI ETR 138
fault repair time
ETSI ETR 138
ETSI ETR 138
unsuccessful call ratio
ETSI ETR 138
ETSI ETR 138
call set up time
ETSI ETR 138
ETSI ETR 138
response times for operator services
ETSI ETR 138
ETSI ETR 138
response times for directory enquiry services
as for operator services
as for operator services
proportion of coin and card operated public pay—telephones in working order
ETSI ETR 138
ETSI ETR 138
billing accuracy
see note 2
see note 2

---
Source: https://www.legislation.gov.uk/uksi/1998/1580/schedule/III (the official version)
Page: https://openlegislation.uk/telecommunications-open-network-provision-voice-telephony-regulations-1998/schedule-III
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.